“I and the Father are one” (John 10:30).
It is perhaps one of the most sublime and mysterious concepts– the idea of the Triune God. The arguments regarding how it was possible for God to be One in Three Persons consumed much of Christianity for the first three hundred years after the death of the Apostles– and again in the past two hundred. If there is one doctrine that people have difficulty understanding, it is this one indeed!
The challenge is evident. From Deuteronomy 6:4 on, YHWH uniquely identified Himself as God– not just any god, not one of many gods, but the One God. YHWH our God YHWH one is the literal concept behind Deuteronomy 6:4b. The idea of the unity of God is essential to Judaism, Islam, and indeed also to Christianity.
But then we have Jesus making these divine declarations. John speaks of Him as the Word, not just with God, but being God (John 1:1). Jesus will declare Himself the I AM in John 8:58. He declares His unity with the Father in John 10:30 and fully in John 17:20-23. Both Paul and the Hebrew author declare that Jesus represents the fullness of the Godhead in bodily form, the exact imprint of the divine nature (Colossians 2:9, Hebrews 1:3). Peter will also include the Holy Spirit in such a framework (1 Peter 1:2, 2:21). Beyond all this, both Paul and Jude strongly intimate that when the Old Testament speaks of YHWH acting regarding His people in the wilderness, that Christ the Son is involved (1 Corinthians 10:1-9, Jude 1:5). So how can God be One yet Three?
All kinds of answers have been suggested. Some answers try to argue that Jesus really was not God like the Father was God. Other answers try to argue that God really is one person, and just manifests Himself in three modes or forms. Yet when we look at the textual evidence, these answers do not work. All three Persons are present at Jesus’ baptism (Matthew 3:15-17). Jesus declares that there are two witnesses, Himself and the Father (John 8:17-18). There are too many Scriptures confessing Jesus’ full deity and His unique Personhood.
The problem with these answers is that they assume that when God is One, that unity must be in personhood. But neither Deuteronomy 6:4 nor any other passage so limits the understanding of God’s unity. Instead, we can suggest as a feasible answer that the unity of God is not based in personhood but in other factors– they are unified in substance, essence, and will. In short, God is One in relational unity.
God Himself testifies to this within His creation (cf. Romans 1:19-20). Humans are given a glimpse of this idea of relational unity in marriage. From the beginning God has intended for a man and woman to come together and become one (Genesis 2:24, Matthew 19:4-6). Paul will later attribute the same unity as existing between Christ and the church (Ephesians 5:31-32). How are people one in marriage? They are of the same substance and essence, for one. And the marriage that lives up to God’s ideal is one where each mutually submits to one another, respecting their roles, but becoming as one in terms of purpose, intention, direction, and whatnot (cf. Ephesians 5:21-33). The goal is to see that while they do remain two people, for all intents and purposes, they are one. They are tied together by their reciprocal, mutual love.
So it would be within the Godhead. We must never emphasize the distinctiveness of the Persons of the Godhead to the neglect of their unity. Think about it for a moment– the Three Persons of the Godhead are so unified in will, intention, and purpose, that we can speak of God entirely in terms of a unity. We speak of God Himself doing, acting, working, even though it is really the Three in One, and that is possible only because of the intense relational unity amongst the Three. This is how God is love (1 John 4:8)– for God to be love as one person would make God the ultimate narcissist. Instead, God maintains sacrificial love within Himself amongst the Three, and the blessing bestowed upon us is that He wants us to join in that love.
And that is why understanding God as the Triune, Three in One and One in Three, is so essential. It is not merely some abstract, academic concept that is irrelevant to life. Quite the contrary– God’s nature informs God’s work and purpose for mankind. And John 17:20-23 describes this perfectly.
As the Father is in the Son (and in the Spirit), and the Son is in the Father (and in the Spirit), so Jesus prays for all believers to be one with the Father and the Son as the Father and the Son are one, and likewise to be one with one another (John 17:20-23). Our existence, redemption, and hope of ultimate glory, therefore, are inextricably bound up in God’s own relational unity amongst the Three.
Why did God create all things and make us in His image? Love’s greatest joy is to share in love, and so the Godhead wished to share the love within Himself with all of us (cf. 1 John 4:8).
Why did God prove so willing to redeem us even though we did not deserve it? It is love’s essence to suffer loss for the advantage of the beloved; as the Son does for the Father, so the Father, Son, and Spirit do for all of us (Hebrews 5:7-8, Romans 5:6-11).
What is God’s ultimate goal? To extend the association, love, and relational unity that exists within Himself with His creation, and to maintain that unity for all eternity in glory (cf. Romans 8:17-24, Revelation 21-22).
We are called to seek after God and that relational unity with Him as it exists within Himself (Acts 17:26-27, John 17:20-23). In so doing, we must develop that unity with one another if we are really going to reflect the image of the Son (Romans 8:29, 1 John 1:4-7). The path is clear: as the Father and Son are one, so must we be one with each other, and that requires not just some level of mutual understanding of truth but also willingness to suffer loss for one another, humbling ourselves so as to seek each others’ advantage, just as the Son did for the Father and for us (Philippians 2:1-8).
God is love; God manifests love within Himself; that love overflows toward the creation; we have the opportunity to share in the blessing of a relationship with God so that we can become conformed to the image of the Son so as to return to the blessed state of full, unbroken association with God. How wonderful! How praiseworthy! Let us always praise and thank God for our opportunity to maintain association with Him and to enjoy that association for all eternity!
Ethan R. Longhenry