Q what does it mean that Jesus is “subjected”?
There is an order to all things that God has arranged - naturally, as God - He is at the top! The following verses are a sampling of this subjected order, specifically, regarding Jesus the Christ.
1 Cor 11:3 ... the head of Christ is God.
John 14:28 ... my Father is greater than I.
1 Cor 3:23 ... Christ belongs to God.
Eph 4:4-6 … one Lord, one faith, one baptism, one God and Father of all who is over all and through all and in all.
Jesus, when in the flesh was clearly subject to God in every manner... saying that he could do nothing of himself, or speak of himself.
For I have not spoken on My own, but the Father Himself who sent Me has given Me a command as to what I should say and what I should speak. John 12:49
Jesus, faced with a desire to abandon the 'cup of sacrifice' submitted again to the Father's will for the last steps of a successful mission.
Jesus relies on his Father for everything including life and being raised from death. The death he died as a mortal human.
having been put to death in the flesh, but made alive in the spirit 1 Pet 3:18
If Jesus was somehow God, even manifest as a man - either he is still God or he isn't. If he is in some way God - he must be still spirit in some place of his existence or he is not God. How are we to understand, put to death in the flesh, if he was still spirit? Some think he had two natures but the bible never speaks of this.
Now God has not only raised the Lord, but will also raise us up through His power. 1 Cor 6:14 and ~30 other places)
Jesus speaks of raising men from death at the last day - he does this by God's power - not any inherent power - God gives him the power and authority.
Matthew 28:18 And Jesus came up and spoke to them, saying, “All authority has been given to Me in heaven and on earth".
If God has given this - clearly Jesus didn't have it of himself.
1 Peter 3:22 who is at the right hand of God, having gone into heaven, after angels and authorities and powers had been subjected to Him.
Were they always subjected to him ? No !
Jesus answered, “You would have no authority over Me, unless it had been given you from above John 19:11
knowing that Christ, having been raised from the dead, is never to die again; death no longer is master over Him Rom 6:9
All his authority and kingship is given from the Father to His beloved son.
"No one has taken it away from Me, but I lay it down on My own initiative. I have authority to lay it down, and I have authority to take it up again. This commandment I received from My Father." John 10:18
It was posed, 'how can Jesus be "subjected" to God if he is God?
He cannot be unless we ignore plain, consistent teaching of who Jesus is.
There is no paradox. The biblical text shows Jesus as a man (clearly documented through the entire NT), the last 'Adam/human' is not God at all, but was made in the form of God and a true image of God.
Jesus also provided context for this claim via the coin story. (Matt 22:19-20) let us not think the image IS Caesar, but rather an image which 'represents' Caesar) eikōn same word used in Matt and Col 1:15 Is an 'icon' the real thing or a pointer to the real thing? Jesus is the pointer to God. He carries the authority OF God and represents God just as the image on the coin does to its owner. The coin is a servant of Caesar - Jesus is the servant of God Acts 3:26 unto death on a cross - that's what you call being subjected!
Every living thing is subject to God - Jesus included - but not by decree, power or coercion, but love and worship alone. He was subjected 'in the flesh' and remains so 'in the spirit' as Paul points out consistently.
That Jesus expressed and his apostles said often - he had, and HAS, a God! Surely indicating more than adequately that to think Jesus is also God, is to have made an error.
Rev 1:1, 3:12, John 17:3, 20:17, 2 Cor 1:3, Eph 1:3, Col 1:3, 2 Cor 11:31, Rom 15:6, Rom 1:7