I guess I have a different interpretation of the "two become one" part of the marriage ceremony. I used to think as you did, but then it dawned on me that it is about procreation.
My husband and I are two, and then we became one and her name is Erin. My husband and I are two and then we became one and her name is Kerry.
Sometimes I sit alone and serious thoughts will occur to me, and this was one of them. I am sure that those of you who know your Bible inside out will have an argument for me; but, this interpretation seems to fit better for me.
Liz, you have stumbled onto ultimate truth. I say ‘stumbled’ only because you seem uncertain of your assertion.
We are created in the ‘image and likeness’ of God. ‘Male and female, He created’ us. Yet, He is three (Father, Son and Holy Spirit) while we are only two as husband and wife. We reflect Him fully only as a family. When two become one flesh, their love is so real that nine months later, they give it a name. Just so with God. The Love that is God is so fully realized and reflected by Jesus that He has His own identity as the Holy Spirit.