Again, in the context of an omnipotent God, why? Also, if it could be removed through death, why wasn't it removed as soon as the first man died (Abel)?
How can I agree if it makes zero sense? God had to send Himself in a human body and let that human body be killed by other humans in order to remove the evil nature of humanity? Where is the relationship between the premise and the conclusion? It seems like a non sequitur. How does Jesus being killed remove the evil nature of humanity? The evil nature of humanity is what got Jesus killed in the first place.
Not through just physically dying, but through dying with Christ. Our old sinful nature has to cease to exist. We can put it to death, decide to not sin. That is not possible without the cross. The O.T. saints were forgiven, but they could not get a new nature. That's why the laws were way easier. Now it's a sin to take an extra wife, cause a christian can say no to his flesh, but David was allowed to have a load of women, because he had his flesh nature, that couldn't get killed or be done away. That happened when Jesus died. Had He not died and risen, there would be no hope. Everyone would die being sinful, always having to sin again and say God said hey I forgive you all and it's all fine, then eternity would be like earth now. Everyone would still be full of sin and kill and steal and hurt others. It had to be destroyed.
He took our sins in His body. When He died the sin nature was killed.
We sinned, so we were a slave to sin and the author of sin, satan. His nature was in everyone. That had to be cut out. The snake on the pole in the desert.
When we die with Christ we are not slaves to sin anymore. We get a new heart. Spiritual circumcision, the evil flesh part is cut off.
Galatians 2:20
20 I have been crucified with Christ; it is no longer I who live, but Christ lives in me; and the
life which I now live in the flesh I live by faith in the Son of God, who loved me and gave Himself for me.
Romans 6:6
6 knowing this, that our old man was crucified with
Him, that the body of sin might be [
a]done away with, that we should no longer be slaves of sin.