Until

It is in spirit that we all are one for we are first joined to Him in spirit:
1 Cor. 6:17
"But the person that is united to the Lord becomes one spirit with Him." This is the beginning of our "full" salvation, first spirit, then soul, then body:

Justified in spirit
Sanctified in soul (mind)
Glorified in body

1 Cor. 15:25
"Christ must be King and reign (within us) UNTIL He has put all [His] enemies under His feet. {this is a reference to Psa. 110:1 which says "The Lord said to my Lord [the Messiah], Sit You at my right hand, UNTIL I make Your adversaries Your footstool." We are assured of being complete in Him. This is our heavenly or spiritual position in Him, and as we rest assured in Him, there is an ongoing work that transpires in us where He is now being made complete in us. This I see as the joining of heaven and earth, Father and Son being made One.}

1 Cor. 15:28
...However, WHEN EVERYTHING is subjected to Him, then the Son Himself will also subject Himself to the Father Who put all things under Him, SO THAT GOD MAY BE ALL IN ALL - that is, be everything to everyone, supreme, the indwelling and controlling factor of life.

And as Ron said too, the truth that "He must increase and I must decrease" may get unintentionally inverted and we in self efforts try to decrease when it is impossible without the increase of Himself in us first. So thank you, Father, for each unveiling of Yourself in us....You are our Treasure we cling to trusting this unmeasurable Grace to do its perfect work in us all.

Much love and blessings to all with the full assurance that Love cannot fail to accomplish its 'All'.
Karen