9 Minute Read


1 Chronicles 28:1–29:30
Romans 5:6-21
Psalm 15:1-5
Proverbs 19:18-19


Romans 5:17 (CSB): “Since by the one man’s trespass, death reigned through that one man, how much more will those who receive the overflow of grace and the gift of righteousness reign in life through the one man, Jesus Christ.” 


As Christians, we realize that the Bible is clear that Jesus became a man. He, who has always existed as part of the divine Trinity and always will exist as such, became a man.

Philippians 2:5–7 (CSB): “Adopt the same attitude as that of Christ Jesus, who, existing in the form of God, did not consider equality with God as something to be exploited. Instead he emptied himself by assuming the form of a servant, taking on the likeness of humanity. And when he had come as a man,”

Further, we know that Jesus became a man so that He could provide the offering for sin.

Romans 8:3 (CSB): “What the law could not do since it was weakened by the flesh, God did. He condemned sin in the flesh by sending his own Son in the likeness of sinful flesh as a sin offering,”

But why did Jesus become man? Why couldn’t God simply forgive sin while allowing Jesus to remain in Heaven? Why was it necessary for Jesus to leave Heaven, become a man, and pay the sin debt of all who would trust in Him – as a man?

The answer to these questions would take a very, very long time to answer. But, let me try to answer it as briefly as I can by focusing on only one of the big reasons that Jesus had to become a man.

Essentially, our understanding of why Jesus had to become a man is rooted in the following two facts:

  • sin was brought into the human experience by a man
  • God is gracious but is also a righteous judge

When we read Genesis 3, we cannot help but realize that while Eve was the first to sin, Adam was the one that God held responsible for sin. God looked at the man and saw the one who had clearly violated His command. Sin was brought into the human experience by a man.

Further, God is a gracious but a good judge. While He desired for mankind to remain in fellowship with Him, allowing mankind to enjoy all of its benefits, He cannot simply allow sin to go unpunished. We see this in Genesis 3 as God pronounced judgment upon Adam and Eve, He cursed His creation, and forced the first married couple out of Paradise into a cursed world.

Mankind sinned and God righteously pronounced judgment upon them.

But our God is gracious and He made us to experience and enjoy His glory. So, He delights to demonstrate His glory to us.

God wasn’t content to allow mankind outside the realm of His grace. He had determined before He created the universe (Ephesians 1:4; Revelation 13:8) that He would demonstrate His goodness and glory to humanity by providing a way back to Him. He would provide a way in which He could demonstrate 1) His grace to forgive sin and 2) His justice to deal with sin.

The answer was and is Jesus.

But, how would Jesus be able to bring us back into relationship with God by dealing with our sin?

Answer: He had to come as a man.

Which brings us back to our original question: “Why did Jesus have to become a man?”

Answer: Since sin (and it corresponding curse) was engaged in by a man, then sin (and its corresponding curse) had to be defeated by a man.

This is what Paul is saying as we read Romans 5:12-21.

Romans 5:15 (CSB): “But the gift is not like the trespass. For if by the one man’s trespass the many died, how much more have the grace of God and the gift which comes through the grace of the one man Jesus Christ overflowed to the many.”

Romans 5:17 (CSB): “Since by the one man’s trespass, death reigned through that one man, how much more will those who receive the overflow of grace and the gift of righteousness reign in life through the one man, Jesus Christ.”

Romans 5:19 (CSB): “For just as through one man’s disobedience the many were made sinners, so also through the one man’s obedience the many will be made righteous.”

Since a man disobeyed God, was judged by God, was forced out of Paradise by God, passed the sin nature (and its consequences) to everyone of his descendants, and so much more, it required another Man to fix what the first man messed up.

What the first man lost, a second Man had to regain.

This is why Paul refers to Adam as “the first Adam” and Jesus as “the second Adam.” Jesus (the second Man) fixed what Adam (the first man) destroyed.

This post is beginning to get lengthy but let’s ask one more question: “Why did Jesus have to be the second Adam? Couldn’t some other man, a descendent of the first Adam, be the second Adam?”


The reason:

  • The first Adam was created innocent. He was not created with a sin nature. He had no propensity toward sin. He could take it or leave it.
  • Yet, when Adam sinned, the principle of sin came alive inside him and he now had a sin nature. Sin became a major temptation to him as he was regularly compelled to do what God had forbidden.
  • Adam passed the sin nature (the innate propensity toward sin) to his children, who passed it on to their children … And so every single person on the planet has a sin nature since we are all descendants of Adam.
  • So, no human being exists who could defeat sin since it holds every one of us captive (Romans 3:10-12, 23).
  • We needed someone to step into our experience, who was created without the sin nature (like Adam in his original state), to defeat sin. Just as Adam was defeated by sin, we needed a second Adam to conquer sin. Just as Adam passed on the sin consequences to all of his descendants, we needed a second Adam to pass on the victory to all of those who align with Him.
  • Therefore, God sent Jesus (who had no sin nature) to be tempted by Satan (Matthew 4) and the rest of the worlds temptation (1 John 2:16), so that He could remain perfectly righteous and obedient to God. When He died on the cross, He could pay the sin debt and credit His righteousness to any and every person who trusts in Him. When He rose from the dead three days later, He conquered not only sin but also sin’s primary consequence – death!

Jesus was the second Adam! He fixed what the first Adam destroyed.

So, my friend, the very fact that you are reading this post means that you are alive. That also means that you are a descendent of the first Adam … with all of its negative sinful consequences.

But, a second Adam came to remedy the problem created by the first Adam. That second Adam is Jesus and He fixed the sin problem on the cross. Why not place your trust in the second Adam today? Why not ask Him to forgive your sins right now? Why not become a full-fledged Jesus-follower today … and enjoy all of the benefits of doing so?

If you are already saved, why not spend some time reflecting on what Jesus did to make you right in God’s eyes. And then praise and thank Him for it. He is worthy of it, my friend!