A sinless Christ (2 Cor 5:21, Heb 4:15, 1 Jn 3:5 1 Pet 1:19, 1 Pet 2:22) willingly (Matt 26:53) became sin (2 Cor 5:21) a curse (Gal 3:13) to rescue believers from sin & death.
Rom 5:
17 For if by one man's offence death reigned by one; much more they which receive abundance of grace and of...