Acts 3:19

Repent ye therefore, and be converted, that your sins may be blotted out, when refreshing seasons shall come from the presence of the Lord;

Colossians 2:14

and hath blotted out the handwriting in ordinances that was against us, which was the obstacle to us, and took it from the midst, nailing it to the cross;

Romans 5:20-21

But the law was introduced, that the offence might be more abundant. But where sin had abounded, there hath grace abounded more exceedingly:

Ephesians 1:6-8

to the praise of the glory of his grace, whereby he hath made us acceptable in that beloved one;

Ephesians 2:4-7

But God, being rich in mercy, through the great love with which he hath loved 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
But the law was introduced, that the offence might be more abundant. But where sin had abounded, there hath grace abounded more exceedingly:
Ephesians 1:6
to the praise of the glory of his grace, whereby he hath made us acceptable in that beloved one;
Ephesians 2:4
But God, being rich in mercy, through the great love with which he hath loved us,