The common misconception when folks hear things like this is that they tend to think of it as saying that they are equal to God in His sovereignty. No, that is not what Jesus was to suggest. It is rather about the hereditary in the family of God. We are one with Him by reason of being co-heirs with Christ of all there is of the commonwealth of the divine nature. Not equal in command, neither is Jesus; but equal in nature, in likeness. Jesus made it easy for us to understand when He said, “My Father is greater than I” (John 14:28). In 1 Corinthians 15:26-28 the Apostle Paul wrote concerning the place of Jesus Christ Himself during the reconciliation process. For “He (Jesus) must reign, till he hath put all enemies under his feet… But when he saith all things are put under him, it is manifest that he is excepted, which did put all things under him. And when all things shall be subdued unto him, then shall the Son also himself be subject unto Him that put all things under him, that God may be all in all.” Nonetheless, “Nothing shall be impossible with them that believe,” because nothing is impossible in the divine nature.

Said in another way, note that except for the hierarchy of commands, the likeness of God the Father is the likeness of Jesus Christ, which is the likeness of you and I, and whosoever that should believe being a part in the one body with Christ. The chain of command makes the difference. We are gods, to be changed into the glorious image of the Most High God, which once we fell short of, but now are restored by the spirit of regeneration through the Son, into the oneness of the Father. On purpose, God the Father has abdicated all command into the hands of His Son, until all foes are brought under rule. Even at that, the Son is bearing the scepter of righteousness to rule and to conquer in accordance with the will of the Father; and then shall the Son also be subject to His Father, that God may be all in all. That all things are possible then is not to say that every part may go about doing whatsoever it pleases, but all are subject to the gracious, loving will of the Father.

Additionally, note that in terms of the persons in the Holy Trinity, that the head and His body the Church, together make up the third person; so that as the head, so is the body. Notice also that on the head, that is Christ, is the fullness of the Godhead expressed: “For it pleased the Father that in Him should all fullness dwell” (Hebrew 1:3; Colossians 1:19). “But unto every one of us is given grace according to the measure of the gift of Christ” (Ephesians 4:7). More plainly, is to say that from the head the fullness flows to every part of the body to exercise thereof, in the measure, as it may be put in trust of the divine nature (1 Thessalonians 2:4): to “some Apostles; and some, prophet; and some evangelists; and some pastors and teachers; for the perfecting of the saints, for the work of the ministry, for the edifying of the body of Christ” (Ephesians 4:11,12).

See, then, how that the head (Christ) is in His body the Church. But Christ we already know is in His head; that is God (1 Corinthians 11:3). Therefore, the head (Christ) and His body the Church are one and are both in His head; that is God. Hence, the Church is one body with the head, which is the third person in the Trinity. There is therefore God the Father, God the Holy Spirit, and Christ and His body the Church (i.e. God the Son). “For it became him, for whom are all things, and by whom are all things, in bringing many sons unto glory” (Hebrew 2:10).

To understand it is to know that, by the sanctification, we take on the nature of Christ. Hence, at the rapture he “shall change our vile body, that it may be fashioned like unto His glorious body” (Philippians 3:21). This is the eternal nature of the saints. For as is the head, so is the body. “Wherefore in all things it behooved Him to be made like unto His brethren;” and “for which cause He is not ashamed to call them brethren” (Hebrew 2:17,11). The difference again is that “It pleased the Father that in Him should His fullness dwell.” But to you and I are given a measure of that fullness (the gift of Christ), the express image. So there is the head and the body, consisting of the leg, the hand, the toes, and what have you. And a head must necessarily have a body, which for Christ is found in His body, the Church.

The relevance of the triune therefore lie in the role each part is playing in the government, and according to the good pleasure of God the Father (Revelation 4:11). To the intent that in the end Christ should return in His resurrected body (Acts 1:11) to the New Jerusalem, together with His Church, to reign as kings and priests forever over the nations, in the power of the Spirit of the Father; as was David. Note then that the place of the Father in the chain is crucially for the purpose of administering the wholeness, much the same as the husband is the head of his wife. And the invisible things of Him are clearly revealed, being understood by the things He has made, so that we have no excuse! Read more here