Acts 3:19

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

Colossians 2:14

having forgiven you all trespasses, Having blotted out by his decrees the hand-writing against us, which was contrary to us; and having nailed it to his cross, he took it out of the way.

Romans 5:20-21

But the law came in between, that the offence might abound: yet where sin abounded, grace did much more abound:

Ephesians 1:6-8

To the praise of the glory of his grace,

Ephesians 2:4-7

But God who is rich in mercy,

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 in between, that the offence might abound: yet where sin abounded, grace did much more abound:
Ephesians 1:6
To the praise of the glory of his grace,
Ephesians 2:4
But God who is rich in mercy,