Where does the Bible talk about the man of Christ?
Your question is hard to understand. Do you mean the man of Christ in the sense of being in Christ, or do you mean the manhood of Christ in the sense of Christ being a man?
The man in Christ:
We are ‘in Christ’ when we believe the gospel and are baptised into him by immersion in water for the forgiveness of sins. After that we live by his commandments.
Romans 6:4 Therefore we were buried with Him through baptism into death, that just as Christ was raised from the dead by the glory of the Father, even so we also should walk in newness of life.
Romans 8:1 There is therefore now no condemnation to those who are in Christ Jesus, who do not walk according to the flesh, but according to the Spirit.
2 Corinthians 5:17 Therefore, if anyone is in Christ, he is a new creation; old things have passed away; behold, all things have become new.
Galatians 3:13 Christ has redeemed us from the curse of the law, having become a curse for us (for it is written, "Cursed is everyone who hangs on a tree"),
Galatians 3:27-29 For as many of you as were baptized into Christ have put on Christ. 28 There is neither Jew nor Greek, there is neither slave nor free, there is neither male nor female; for you are all one in Christ Jesus. 29 And if you are Christ’s, then you are Abraham’s seed, and heirs according to the promise.
Christ as a man:
Although God was his Father, Jesus Christ was a physical descendant of Abraham and David through his mother Mary.
Galatians 4:4 But when the fulness of the time was come, God sent forth his Son, made of a woman, made under the law,
Matthew 1:1 The book of the genealogy of Jesus Christ, the Son of David, the Son of Abraham:
Luke 1:32 "He will be great, and will be called the Son of the Highest; and the Lord God will give Him the throne of His father David.
Romans 5:12-19 Therefore, just as through one man sin entered the world, and death through sin, and thus death spread to all men, because all sinned— 13 (For until the law sin was in the world, but sin is not imputed when there is no law. 14 Nevertheless death reigned from Adam to Moses, even over those who had not sinned according to the likeness of the transgression of Adam, who is a type of Him who was to come. 15 But the free gift is not like the offense. For if by the one man’s offense many died, much more the grace of God and the gift by the grace of the one Man, Jesus Christ, abounded to many. 16 And the gift is not like that which came through the one who sinned. For the judgment which came from one offense resulted in condemnation, but the free gift which came from many offenses resulted in justification. 17 For if by the one man’s offense death reigned through the one, much more those who receive abundance of grace and of the gift of righteousness will reign in life through the One, Jesus Christ.) 18 Therefore, as through one man’s offense judgment came to all men, resulting in condemnation, even so through one Man’s righteous act the free gift came to all men, resulting in justification of life. 19 For as by one man’s disobedience many were made sinners, so also by one Man’s obedience many will be made righteous.
Philippians 2:8 And being found in appearance as a man, He humbled Himself and became obedient to the point of death, even the death of the cross.
Hebrews 2:16-18 For verily he took not on him the nature of angels; but he took on him the seed of Abraham. 17 Wherefore in all things it behoved him to be made like unto his brethren, that he might be a merciful and faithful high priest in things pertaining to God, to make reconciliation for the sins of the people. 18 For in that he himself hath suffered being tempted, he is able to succour them that are tempted.
1 Timothy 2:5 For there is one God and one Mediator between God and men, the Man Christ Jesus,
If this answer is not satisfactory, please rephrase the question.