Ps. Lee Eden teaches on biblical "Oneness".Just as Christ is one with The Father, we are also made one with Him so the world will know God loves them and He sent Jesus for them.Oneness is for purpose.

John 17:21-23 Living Bible

21 My prayer for all of them is that they will be of one heart and mind, just as you and I are, Father—that just as you are in me and I am in you, so they will be in us, and the world will believe you sent me. 22 “I have given them the glory you gave me—the glorious unity of being one, as we are— 23 I in them and you in me, all being perfected into one—so that the world will know you sent me and will understand that you love them as much as you love me.