Word: sins in Romans

Whom God hath set forth to be a propitiation through faith in his blood, to declare his righteousness for the remission of sins that are past, through the forbearance of God;

Romans 4:7

Saying, Blessed are they whose iniquities are forgiven, and whose sins are covered.

Romans 7:5

For when we were in the flesh, the motions of sins, which were by the law, did work in our members to bring forth fruit unto death.

Romans 11:27

For this is my covenant unto them, when I shall take away their sins.