By steadfast love and faithfulness iniquity is atoned for, and by the fear of the LORD one turns away from evil.
Proverbs 16:6 ESV

These are the two primary components of our salvation. God's grace provides the chesed and emet through which Yeshua's blood atones for our sins, and we provide repentance. Note that atonement comes first. Repentance is necessary for salvation, but without atonement, no repentance would ever be sufficient.