Why One? A challenging question. Intuitively, mystics from all religions have come to the realization of our oneness with God, each other and creation. Does this mean we are somehow absorbed in a single amorphous entity and loose our identity? Obviously not. Nor are we God. Very obviously not.
But neither are we isolated, without relationships; we are members of various communities from the human race to our families and friendships. We are one humanity. We are dependent on one another from our conception, birth, and nurturing to our familial and social relationships. We become one body with our spouse [Gen 2:24;Mk 10:8] and form one family unit. Thus, we are faced with that continuously reoccurring phenomenon of both/and; the answer is that I am both me and simultaneously one with others.
As this stemmed from the reading: I, a prisoner for the Lord, urge you to live in a manner worthy of the call you have received, with all humility and gentleness, with patience, bearing with one another through love, striving to reserve the unity of the spirit through the bond of peace: one body and one Spirit, as you were also called to the one hope of your call; one Lord, one faith, one baptism; one God and Father of all, who is over all and through all and in all. [Eph 4:1-6] we’ll start there.
In looking at the reading, the rational reasons for oneness are start with the last [whereas the intuitive insight, as Paul states it, starts with the first.].
One God and Father of all, who is over all and through all and in all.
Our oneness begins with God, who is one, who is Creator of all, and is the one and only Father of the one family He created [which, when viewed this way, includes all creation, angels and men, spiritual and material]. Thus, He is certainly over all. And since He is all that is, oneness also stems from not only our being created in the image and likeness of God [Gen 1:26, 27] but everything else being a reflection of the One who is one. But He is also in all, continually creating and sustaining all being; He is existence itself. Finally, it is though all being, facets of His image and continuing creation that He makes Himself known: Ever since the creation of the world, his invisible attributes of eternal power and divinity have been able to be understood and perceived in what he has made. [Rom 1:20]
One Lord, one faith, one baptism
Here I have to make the leap of faith that the Jews had to do with Jesus, from the One God to Jesus as One with God the Father and the Holy Spirit, the only begotten Son. I have to recognize Him and accept Him as the Messiah. He is Our One Lord, the same for you, for me, for everybody. In believing in Him, we share one Faith; “It follows that all men and women who are saved share, though differently, in the same mystery of salvation in Jesus Christ through his Spirit.” And there is one Baptism, though in the forms of water, of blood, and of desire: “For, since Christ died for all men, and since the ultimate vocation of man is in fact one, and divine, we ought to believe that the Holy Spirit in a manner known only to God offers to every man the possibility of being associated with this paschal mystery.”
As you were also called to the one hope of your call
Israel’s hope rested in Yahweh: My soul, be at rest in God alone, from whom comes my hope. [Ps 62:6], it is realized in Jesus life, death and especially his resurrection: the hope of eternal life that God, who does not lie, promised before time began. [Titus 1:2] As Paul explains elsewhere: But when the kindness and generous love of God our savior appeared, not because of any righteous deeds we had done but because of his mercy, he saved us through the bath of rebirth and renewal by the holy Spirit, whom he richly poured out on us through Jesus Christ our savior, so that we might be justified by his grace and become heirs in hope of eternal life. [Titus 3:4-7] It is to this salvation that we have been called through the preaching of the Good News: God chose you as the firstfruits for salvation through sanctification by the Spirit and belief in truth. To this end he has [also] called you through our gospel to possess the glory of our Lord Jesus Christ. [2Thes 2:13-14]
One body and one Spirit
There is but one Spirit of God, one Holy Spirit. He who hovered over the waters during the creation is the same as He who lead the Israelites out of Egypt with a cloud and fire; who caused prophetic ecstasy in David, who came upon Mary, who filled Elizabeth, who inspired Simeon, who appeared as a Dove, who drove Jesus into the desert to be tempted, who blows where he wills, who appeared as a cloud, whom Jesus promised to send as our Advocate, whom Jesus breathed upon the Apostles, who came as wind and tongues of fire on Pentecost, who fell upon Cornelius and his household, who convicts the world of sin and righteousness and condemnation, who gives life and who has given different gifts to each one of us….why, to equip the holy ones for the work of ministry, for building up the body of Christ, until we all attain to the unity of faith and knowledge of the Son of God, to mature manhood, to the extent of the full stature of Christ. [Eph 4:12-13] For as in one body we have many parts, and all the parts do not have the same function, so we, though many, are one body in Christ and individually parts of one another. [Rom 12:4-5]
striving to reserve the unity of the spirit through the bond of peace
This unity, this oneness, was not lightly purchased. It took the Son of God to show us that we are one in Him, that He is our one and only Savior, that He suffered for sins once, the righteous for the sake of the unrighteous, that he might lead you to God [1Pet 3:18] and that if we believe that Jesus died and rose, so too will God, through Jesus, bring with him those who have fallen asleep. [1Thes 4:14]
We retain this faith, this belief, as one Body, one Church. Contrary to what we witness in our Christian Community, all believing their own interpretation of Christ’s message and claiming that their interpretation is the true faith, they cannot all be right. There is only one church that has all the elements of the faith in it, the one, holy, catholic and Apostolic Church, which possesses both the Scripture and Tradition since the beginning, which has one valid priesthood under bishops who trace their line back to Peter and the Apostles, which has seven cherished sacraments, which had the true Eucharist, the true presence in every tabernacle throughout the world and which can unequivocally claim to preach the truth as guaranteed by the unity of the spirit.
This unity was not only not lightly purchased by God, it is also not easily preserved by us, claiming the blood of martyrs, witnesses to validate its claims, insisting on belief in things unseen alluded to in written Scripture and mandating adherence to moral rectitude that the world deems ludicrous, stifling and archaic.
bearing with one another through love
As pointed out above, though the origin of our oneness is the family of God, this familial, brotherly and sisterly bond is constantly being tested, torn, ripped, shredded, violated through sin. By refusing to obey our one Father, we rebel against our very essence, our image and likeness, just as our first parents did. And we alienate ourselves from the rest of the family, our sisters and brothers in God, in Christ, in the human/divine family.
These ruptures, rivalry, jealousy, fury, selfishness, slander, gossip, conceit, and disorder. [2Cor 12:20], these self-inflicted wounds, can only be healed through forgiveness. Even within our own community, there are disagreements, strife, contentions, and the bond of peace must constantly be striven for, purchased daily only at the cost of patience, understanding, acceptance and love, bearing all things, believing all things, hoping all things, enduring all things. [1Cor 13:7]
with all humility and gentleness, with patience
In this passage, Paul outlines how Love is manifested in oneness: patience, humility, gentleness. Patience harkens back to bearing with one another, enduring all things. Patience comes from the same Latin root as passion, “to suffer, to endure.” Oneness requires a huge amount of patience on the part of each of us, of passion in both senses of that word, the fire of love enabling one to endure and to suffer the other. For life with the other is not a bed of roses, there will be misunderstandings, conflicts, confusion, rivalries, disagreements, anger, tempers. Love suffers, endures through, beyond and above all of these.
How does one take up that Cross, the other, and suffer in patience. By realizing one’s littleness and the continual unveiling of God’s providence. By humility, being precisely whom God made us to be, no less but no more. And by gentleness, by imitating God’s mercy and care of me, and doing to the other as was done to me by God.
live in a manner worthy of the call you have received
By do this, by love, patience, gentleness, humility, we will indeed live in a manner worthy of the call of God, not just to our baptism into the one faith, the one Church, the one Body of Christ, the one Spirit, but that vocation, that calling to be one with the One Lord, to be a temple of the Father, to be Christ’s hands, Christ’s feet, Christ’s voice, Christ’s touch in my unique and inimitable way, and to support and encourage you to be His hands, His feet, His voice, His touch, in your special way. For only by all of us being Christ each in our own way can we hope together with our head, to be one with Christ as He is.
Oneness in Scripture
From God’s point of view:
- One God: Yhwh: I am who I am. [Ex 3:14]
- One Father of all: The LORD is our God, the LORD alone: other possible translations are “the Lord our God is one Lord”; “the Lord our God, the Lord is one”; “the Lord is our God, the Lord is one.  [Deut 6:4]
- One Source and Creator of all being, yet for us there is one God, the Father, from whom all things are and for whom we exist. [1Cor 8:6]
- One Son: one Lord, Jesus Christ, through whom all things are and through whom we exist. [1Cor 8:6]
- One Savior and Redeemer of all: For there is one God. There is also one mediator between God and the human race, Christ Jesus, himself human, who gave himself as ransom for all. [1Tim 2:5] And when I am lifted up from the earth, I will draw everyone to myself. [Jn 12:32]
- One Spirit For in one Spirit we were all baptized into one body, whether Jews or Greeks, slaves or free persons, and we were all given to drink of one Spirit. [1Cor 12:13]
- One Way, one Truth, one Life: I am the way and the truthand the life. No one comes to the Father except through me. [Jn 14:6]
- One Love of all: God is love…In this is love: not that we have loved God, but that he loved us and sent his Son as expiation for our sins. [1Jn 4:8b,10]
- One Providence: We know that all things work for good for those who love God, who are called according to his purpose. [Rom 8:28]
- One Plan of Salvation for all This is good and pleasing to God our savior, who wills everyone to be saved and to come to knowledge of the truth. [1Tim 2:3-4]
- One Body: We, though many, are one body in Christ and individually parts of one another [Rom 12:5]
- One Faith …everyone who believes in him might not perish but might have eternal life [Jn 3:16
- One Spirit, many Gifts: There are different kinds of spiritual gifts but the same Spirit; [1Cor 12:4]
- One Lord, different service: there are different forms of service but the same Lord; [1Cor 12:5]
- One God, different effects/manifestations of power: there are different workings but the same God who produces all of them in everyone. [1Cor 12:6]
- Father is in the Son; the Son in the Father: Believe me that I am in the Father and the Father is in me. [Jn 14:10,11]
The Father, Son and Holy Spirit dwell in me, in you; They are one with us and we, through Them, with each other.
- The Father and the Son will live in me: Whoever loves me will keep my word, and my Father will love him, and we will come to him and make our dwelling with him. [Jn 14:23]
- The Spirit in You: the Spirit of truth, which the world cannot accept, because it neither sees nor knows it….remains with you, and will be in you. [Jn 14:17]
- I am in Jesus, Jesus is in me: On that day you will realize that I am in my Father and you are in me and I in you. [Jn 14:20]
- We are one with and in the Father and Jesus: they may all be one, as you, Father, are in me and I in you, that they also may be in us, that the world may believe that you sent me. [Jn 17:21]
We are “brought to perfection as one” in Christ
- We are brought to perfection as one: And I have given them the glory you gave me, so that they may be one, as we are one, I in them and you in me, that they may be brought to perfection as one, that the world may know that you sent me, and that you loved them even as you loved me. [Jn 17:22-23]
- Unity of mind, love, heart, thinking: If there is any encouragement in Christ, any solace in love, any participation in the Spirit, any compassion and mercy, complete my joy by being of the same mind, with the same love, united in heart, thinking one thing. [Phil 2:1-2]
- Think in harmony and praise with one voice: May the God of endurance and encouragement grant you to think in harmony with one another, in keeping with Christ Jesus, that with one accord you may with one voice glorify the God and Father of our Lord Jesus Christ. [Rom 15:5-6]
- Be of the same mind and purpose: I urge you, brothers, in the name of our Lord Jesus Christ, that all of you agree in what you say, and that there be no divisions among you, but that you be united in the same mind and in the same purpose. [1Cor 1:10]
- Christ is one: For it has been reported to me about you, my brothers, by Chloe’s people, that there are rivalries among you. I mean that each of you is saying, “I belong to Paul,” or “I belong to Apollos,” or “I belong to Cephas,” or “I belong to Christ.” Is Christ divided? [1Cor 1:11-13]
- We are one in Christ: There is neither Jew nor Greek, there is neither slave nor free person, there is not male and female; for you are all one in Christ Jesus. [Gal 3:28]
- We have the same Lord: For there is no distinction between Jew and Greek; the same Lord is Lord of all, enriching all who call upon him. [Rom 10:12]
- We all have the same Spirit: For in one Spirit we were all baptized into one body, whether Jews or Greeks, slaves or free persons, and we were all given to drink of one Spirit. [1Cor 12:13]
- Christ is all and in all: Here there is not Greek and Jew, circumcision and uncircumcision, barbarian, Scythian, slave, free; but Christ is all and in all. [Col 3:11]
We are all one Body
- We are all one body: As a body is one though it has many parts, and all the parts of the body, though many, are one body, so also Christ…Now you are Christ’s body, and individually parts of it. [1Cor 12:12,27] Col 1:18, 24.
- Christ is head of the body, the Church: He is the head of the body, the church. [Col 1:18]
- We are one body and individually parts of one another: For as in one body we have many parts, and all the parts do not have the same function, so we, though many, are one body in Christ and individually parts of one another. [Rom 12:4-5]
- Together as one body, we support one another and the Church grows: Rather, living the truth in love, we should grow in every way into him who is the head, Christ, from whom the whole body, joined and held together by every supporting ligament, with the proper functioning of each part, brings about the body’s growth and builds itself up in love. [Eph 4:15-16]
- The peace of perfection comes from being one: And let the peace of Christ control your hearts, the peace into which you were also called in one body. [Col 3:15]
- Different ministries but unity of faith and knowledge: And he gave some as apostles, others as prophets, others as evangelists, others as pastors and teachers, to equip the holy ones for the work of ministry, for building up the body of Christ, until we all attain to the unity of faith and knowledge of the Son of God, to mature manhood, to the extent of the full stature of Christ. [Eph 4:11-13]
- Without unity and maturity of faith and knowledge, we are individual infants: infants, tossed by waves and swept along by every wind of teaching arising from human trickery, from their cunning in the interests of deceitful scheming. [Eph 4:14]
- If we go off on our own, we are not connected with Christ in his body: Let no one disqualify you, delighting in self-abasement and worship of angels, taking his stand on visions, inflated without reason by his fleshly mind, and not holding closely to the head, from whom the whole body, supported and held together by its ligaments and bonds, achieves the growth that comes from God. [Col 2:18-19]
We are one because we all receive the same Jesus
- The loaf is one; Jesus is one; we are one: Because the loaf of bread is one, we, though many, are one body, for we all partake of the one loaf. [1Cor 10:17]
Jesus is one with my neighbor.
- The criteria of our judgment: ‘Amen, I say to you, whatever you did for one of these least brothers of mine, you did for me.’ [Mt 25:40]
- Jesus identifies himself with the persecuted: “Saul, Saul, why are you persecuting me?” He said, “Who are you, sir?” The reply came, “I am Jesus, whom you are persecuting. [Acts 9:4-5; 22:7-8; 26:14-15]
- The Second Great Commandment: For the whole law is fulfilled in one statement, namely, “You shall love your neighbor as yourself.” [Gal 5:14; see Lev 19:18; Mt 19:19; 22:39; Mk 12:31; Lk 10:27; Rom 13:9; Jas 2:8]
 Scripture texts in this work are taken from the New American Bible, revised edition © 2010, 1991, 1986, 1970 Confraternity of Christian Doctrine, Washington, D.C. and are used by permission of the copyright owner. All Rights Reserved. No part of the New American Bible may be reproduced in any form without permission in writing from the copyright owner.
 Pontifical Council For Inter-Religious Dialogue And The Congregation For The Evangelization Of Peoples, Instruction Dialogue and Proclamation, 29: AAS 84 (1992), 424.
 Vatican II, Pope Paul VI, Pastoral Constitution On The Church In The Modern World, Gaudium Et Spes, December 7, 1965, Vatican, History of the Councils, Vatican II, http://www.vatican.va/archive/hist_councils/ii_vatican_council/documents/vat-ii_const_19651207_gaudium-et-spes_en.html, No. 22.
NABRE note on Deut 6:4.