Acts 3:19

Repent therefore and turn from your ways, that your sins may be blotted out, in order that the times of refreshing may come from the presence of the Lord,

Colossians 2:14

blotting out the handwriting in ordinances that was against us, which was opposed to us, he hath taken it out of the way, nailing it to the cross;

Romans 5:20-21

Moreover the law came in in addition, that the trespass might abound; but where sin abounded, grace abounded much more;

Ephesians 1:6-8

to the praise of the glory of his grace, which he freely bestowed on us in the Beloved;

Ephesians 2:4-7

but God, who is rich in mercy, on account of his great love wherewith he loved us, gave to us,

Treasury of Scripture Knowledge

Summary

{To the chief Musician, A Psalm of David, when Nathan the prophet came unto him, after he had gone in to Bathsheba.} Have mercy upon me, O God, according to thy lovingkindness: according unto the multitude of thy tender mercies blot out my transgressions.

Bible References

O god

Romans 5:20
Moreover the law came in in addition, that the trespass might abound; but where sin abounded, grace abounded much more;
Ephesians 1:6
to the praise of the glory of his grace, which he freely bestowed on us in the Beloved;
Ephesians 2:4
but God, who is rich in mercy, on account of his great love wherewith he loved us, gave to us,