Bible Verses About Union With Christ: Christ prayed that all saints might have

That they all may be one, as thou, Father, in me, and I in thee; that they also may be one in us: that the world may believe that thou hast sent me.

I in them, and thou in me: that they may be made perfect in one: and the world may know that thou hast sent me and hast loved them, as thou hast also loved me.