It is easy to fall into believing the lie that because of our past God cannot use us. However, there are several characters in the Bible that God chose to use despite their shortcomings. God specifically chose each one of us to be used for His work before there was even time. His grace given to us by the power of the cross is what enables us to do His work no matter how much we have messed up in the past. We may have some serious struggles, but God chooses to use us anyway.