Just think we make mistakes, fail, and disappoint God every day but He forgives and forgets without any thought to what it was we did. All we have to do is ask for that forgiveness and it is granted to us. We don't have to do anything but ask and we are forgiven. I find that unbelievable. If someone asked me to forgive them and they did something that truly hurt me I would want to make them pay, make them beg, but God doesn't do any of that.
1 John 1:9 (NIV) says, "If we confess our sins, he is faithful and just and will forgive us our sins and purify us from all unrighteousnesses." If we just ask we are forgiven. Now God forgets it 2 Corinthians 5:17 (NASB), "Therefore if anyone is in Christ, he is a new creation; the old things passed away; behold, new things have come." If we are made new then there is no passed. How can God even remember what we have done if we don't have a past. Now that is awesome.
I would love to be more Christ like and be able to forgive and forget like God can. That would be amazing. However I am human and it is hard but I do have a perfect example. If we look to God and his perfect example of forgiving and forgetting then maybe we might have a chance of reflecting that in our own lifestyles because we aren't perfect and we have hurt others too. We are all guilty but someone chose to forgive us and forget what we have done. Thank you Jesus.