Forgiven and Forgotten

Isaiah 43:25 (ESV) "  “I, I am he who blots out your transgressions for my own sake, and I will not remember your sins. "
Isaiah 44:22 (ESV) - " I have blotted out your transgressions like a cloud and your sins like mist; return to me, for I have redeemed you."
Isaiah 55:7 (ESV)  -"let the wicked forsake his way, and the unrighteous man his thoughts; let him return to the LORD, that he may have compassion on him, and to our God, for he will abundantly pardon."
Jeremiah 31:34 (ESV) -"For I will forgive their iniquity, and I will remember their sin no more.”
 
Let us look at one more verse:” 1 John 1:9 (ESV)
 If we confess our sins, he is faithful and just to forgive us our sins and to cleanse us from all unrighteousness.