According to Paul, he who loves his neighbour has fulfilled the law. In his letter to the Romans, Paul teaches that the entire law can be summed up in the commandment to love your neighbor as yourself. When you love your neighbor as yourself, you will not do anything to harm them, steal from them, or bear false witness against them. You will treat them with respect and kindness, as you would want to be treated. In this way, you fulfill the law and show that you are living in accordance with God's will. Paul also teaches that the fruit of the Spirit is love, and that those who walk in the Spirit will naturally show love to others. Ultimately, loving your neighbor is a reflection of your love for God, who is love. When you love your neighbor, you show that you are in harmony with God's character and purpose, and you can experience the peace and joy that come from knowing him.