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. (Romans 5:17)
Man’s problems are a result of his relationship with Adam, who fell in sin and rebellion. God’s remedies are found in a new relationship with Jesus Christ. As we have seen, all of humanity begins life ruled by a tyrant dictator called death. “By the one man’s offense death reigned through the one.” However, when people become related to Jesus Christ through faith, they can learn to reign in life by the “much more” grace of God.
https://www.blueletterbible.org/devotionals/dbdbg/view.cfm?Date=1120