The Scripture states that the fullness of the Godhead dwells bodily in the Son.
“For it pleased the Father that in Him(Jesus) all the fullness should dwell.”Colossians 1:19
“For in Him (Jesus) dwells all the fullness of the Godhead bodily.”Colossians 2:9
Jesus said that when we see Him we see the Father. However He never said He was the Father. He was one with the Father in will and purpose. The Holy Spirit indwelt the Son, however Jesus never said He was the Holy Spirit. While Jesus, the Son, is the fullness of the Godhead bodily, it must be recognized that the Father is not the Son, nor the Son the Father; the Son is not the Holy Spirit, nor the Holy Spirit the Son or the Father.
The Scriptures proclaim the dual truth that Jesus is the fullness of the Godhead bodily, yet the Father, Son and Holy Spirit are three eternal distinctions, distinguishable but indivisible.
This same fullness of God’s Person now indwells the Body of Christ, the Church. It is of His fullness that we have now received.
“And He has put all things under His feet and has appointed Him the universal and supreme Head of the church [a headship exercised throughout the church], Which is His body, the fullness of Him Who fills all in all [for in that body lives the full measure of Him Who makes everything complete, and Who fills everything everywhere with Himself].”Eph 1:22-23 AMPLIFIED
“And hath put all things under his feet, and gave him to be the head over all things to the church, Which is his body, the fulness of him that filleth all in all.”Ephesians 1:22-23 KJV
“fulness” Greek: Strongs #4138. pleroma, repletion or completion, i.e. (subjectively) what fills (as contents, supplement, copiousness, multitude), or (objectively) what is filled (as container, performance, period): — which is put in to fill up, piece that filled up, fulfilling, full, fulness.
“filleth” Greek: Stongs #4137. pleroo, play-ro´-o; to make replete, i.e. (literally) to cram (a net), level up (a hollow), or (figuratively) to furnish (or imbue, diffuse, influence), satisfy, execute (an office), finish (a period or task), verify (or coincide with a prediction), etc.: — accomplish, x after, (be) complete, end, expire, fill (up), fulfil, (be, make) full (come), fully preach, perfect, supply.