He does this using several evil tools, including jealousy, pride, anger, fear, confusion, and lies. The book of Proverbs says, “Love prospers when a fault is forgiven, but dwelling on it separates close friends” (Proverbs 17:9). The devil loves to use the evil tool of jealousy by saying, “Look, God must not love you as much as he loves the other person.” A mature Christian recognizes differences and gives grace to those who may disagree with them. It is so important for believers to learn how to forgive those who wronged us (Mark 11:25). If we can forgive those who have done us wrong rather than holding on to anger and the offense, we defeat the devil and strengthen the Kingdom of God.