Acts 3:19

Repent, therefore, and turn, that your sins may be blotted out, in order that seasons of soul-renewing may come from the presence of the Lord,

Colossians 2:14

having blotted out the handwriting which was against us in ordinances, which was antagonistical to us: and took it out from the midst, having nailed it to the cross;

Romans 5:20-21

But the law came, that the transgression might abound; but where sin did abound, there did grace superabound:

Ephesians 1:6-8

unto the praise of the glory of his grace, with which he has blessed us in the Beloved:

Ephesians 2:4-7

but God, being rich in mercy, on account of his great love with which he 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 came, that the transgression might abound; but where sin did abound, there did grace superabound:
Ephesians 1:6
unto the praise of the glory of his grace, with which he has blessed us in the Beloved:
Ephesians 2:4
but God, being rich in mercy, on account of his great love with which he loved us,