When God revealed himself to Moses at the burning bush, Moses asked him his name. God responds with a phrase that would be later translated as I AM who I AM. This statement of I AM is difficult to translate in English, but it is a statement of who God is rather than just a name. (Exodus 3:14)
In Hebrew this is translated as Yahweh (mod. Jehovah), a sacred name the Jews were afraid to speak out loud. The name means roughly “the self-existing one”. All of creation is dependant on God, but God is only dependant on himself.
At a marriage conference recently, I was shown that husbands, who are masculine, require significance in a relationship. Wives, who are feminine, require security. In this way the husband is dependant on the wife and the wife her husband in the marriage covenant. (1 Peter 3:1-7)
All men and women in Christ make up the body of Christ which is the Church. The Church we know is the bride of Christ, and this relationship is often described as being like a marriage. (Ephesians 5:25-27, Romans 7:1-6)
If this relationship is a marriage, then it is clear that the Church is feminine. Men are masculine in the flesh and women are feminine in the flesh, but in the Spirit, all humans are feminine. (Galatians 3:28) The Church needs security and love, and Christ provides us with that need.
But what about Christ? Is he dependant on the Church for significance? Not at all. Christ’s love and protection of his Bride are entirely one-way. Christ is also in another relationship with the Father. In this relationship, Christ gains security from the Father, and the Father gains significance from the Son, and the Spirit testifies to both of them. Since the Father, Son and Spirit are one and the same, God gains his security and significance from Himself alone, thus another facet of how Yahweh is totally self-sustaining. (John 10:30, Psalm 50:12)