Genesis 2:22-25

In Genesis 2:25, after Adam acknowledged the fact that within God's very good creation, the woman who was taken from his own flesh was now in perfect unity with him. I suppose if we consider that this is the closest thing mankind would have to a God-plane relationship, we could almost say that their relationship was so close that it should have been well on the way to, if you knew one of them, you knew them both.

Within God's magnificently wonderful creation, He had created mankind to be different from one another. But that difference within God's very good creation was not a difference toward division, but a physical difference representing God's perfect path toward unity to be better together than they were apart.