Forget forgetting

At The Thinklings, Philip Schroeder has some very wise words on forgiving and forgetting:

The Bible never tells us to literally forget sin. God can't literally "forget" either or he would cease to be omniscient. God still knows what happened, but he “forgets” our sin in the sense that he treats us as though the event never occurred. Is that how you and I forgive others?

Good points and good question.