Change

I firmly believe people can change, I don't think there's anyone in the world who's heart can't be changed by God. However, I also think that you have to be very careful when people say and act like they've changed, especially if they've deceived you in the past. I say that because for all you know they're putting up an act to impress you or win back your friendship, the only way to tell whether or not they have really changed is patience. If they are just putting up an act then after awhile they won't be able to keep it up anymore and go back to showing you who they really are.
Lately I have been believing that someone I know has changed, that person is Joe. He's chivalrous now, he really reminds me a lot of Nick and it's just been incredible. When Joe first started acting this way I was really skeptical, so one night I prayed to God to show me that Joe had really changed or if he was just faking it. I prayed that God would have Joe not do a particular sin that Joe does quite often and the next day Joe didn't do it. I was completely amazed and so excited because that erased all my skepticism.
You have to be so careful though with people changing because if you just believe them they can easily deceive you again. Remember 1 John 3:20, "whenever our hearts condemn us. For God is greater than hearts, and he knows everything." God knows everything, so He knows if people are just putting up an act and He will help us to see that if we let Him.