Romans 8:3
For what the law was not able to do [for mankind], since it was [too] weak [to deliver them from condemnation] because fleshly people [were unable to obey it perfectly], God condemned sin in the flesh [i.e., sin was declared evil and its power over man broken]. God did this by sending His own Son in a body like sinful man's, and to destroy sin,
2 Corinthians 5:21
God considered Christ to be sinful on our behalf, even though He never sinned, so that we could be considered right with God through Him.
Hebrews 7:26-28
For Jesus was a very suitable head priest for us [i.e., He meets our needs very well], because He was holy, innocent, without [moral] corruption, separated from sinners and [exalted] above the heavens.
1 Peter 3:18
For Christ suffered once for people's sins [to be forgiven]. [It was the case of] a righteous Man suffering for unrighteous people, so that He could bring you [or, "us"] to God [for salvation]. [Though] He [i.e., Jesus] was put to death physically, He was brought back to life by the Holy Spirit [Note: Some translations say "in spirit"].