Question: sins we are not aware of?
Answer: The Bible says, "If we confess our sins, he is faithful and just and will forgive us our sins and purify us from all unrighteousness" (1 John 1:9). But you are right: Often we sin, and aren't even aware of it. ... Forgive my hidden faults ... Then will I be blameless" (Psalm 19:12-13). Never forget why God forgives us.