If we confess our sins, He is faithful and just to forgive us our sins and to cleanse us from all unrighteousness. 1 John 1:9

For if our heart condemns us, God is greater than our heart, and knows all things. 1 John 3:20

I will cleanse them from all their iniquity by which they have sinned against Me, and I will pardon all their iniquities by which they have sinned and by which they have transgressed against Me. Jeremiah 33:8

Keep your servant also from willful sins; may they not rule over me. Then will I be blameless, innocent of great transgression. Psalm 19:13

Through him everyone who believes is justified from everything you could not be justified from by the law of Moses. Acts 13:39

For God did not send His Son into the world to condemn the world, but that the world through Him might be saved. He who believes in Him is not condemned; but he who does not believe is condemned already, because he has not believed in the name of the only begotten Son of God. John 3:17-18

For I will be merciful to their unrighteousness, and their sins and their lawless deeds I will remember no more. Hebrews 8:12

I acknowledged my sin to You, and my iniquity I have not hidden. I said, "I will confess my transgressions to the Lord," and you forgave the iniquity of my sin. Psalm 32:5

I, even I, am He who blots out your transgressions for My own sake; And I will not remember your sins. Isaiah 43:25

For by one offering He has perfected forever those who are being sanctified. But the Holy Spirit also witnesses to us; for after He had said before, "This is the covenant that I will make with them after those days, says the Lord; I will put my laws into their hearts, and in their minds I will write them," then He adds, "Their sins and their lawless deeds I will remember no more. Hebrews 10:14-17

I have blotted out, like a thick cloud, your transgressions, and like a cloud, your sins. Return to Me, for I have redeemed you. Isaiah 44:22

**Scriptures taken from the NIV and the NKJV