Acts 3:19

"Repent then! and reform, from the blotting out of your sins, so that there may come times of refreshing from the presence of the Lord;

Colossians 2:14

blotted out the handwriting of ordinances that stood against us and was hostile to us, and took it out of our way, nailing it to his cross.

Romans 5:20-21

Now law was brought in so that transgression might abound; but where sin abounded, grace super-abounded;

Ephesians 1:6-8

and to the praise of his glorious grace which he graciously bestowed upon us in the Beloved.

Ephesians 2:4-7

But God, who is rich in mercy, because of the 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
Now law was brought in so that transgression might abound; but where sin abounded, grace super-abounded;
Ephesians 1:6
and to the praise of his glorious grace which he graciously bestowed upon us in the Beloved.
Ephesians 2:4
But God, who is rich in mercy, because of the great love with which he loved us,