Acts 3:19

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

Colossians 2:14

having blotted out the handwriting in ordinances which was against us, which was opposed to us, he also took it out of the way, driving a nail through it by means of his cross;

Romans 5:20-21

But, besides the first offense, law was introduced, in order that offenses might abound: but where sin abounded, grace did much more abound:

Ephesians 1:6-8

for the praise of the glory of his grace, by which he has shown us favor 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, besides the first offense, law was introduced, in order that offenses might abound: but where sin abounded, grace did much more abound:
Ephesians 1:6
for the praise of the glory of his grace, by which he has shown us favor in the Beloved,
Ephesians 2:4
but God, being rich in mercy, on account of his great love with which he loved us,