²⁰ You fool! If someone's faith does not lead them to do good things, it is not worth anything. You should know that! ²¹ Think about our ancestor Abraham. He offered his son Isaac on the altar as a gift to God.^[a] Because he did that good thing, God accepted him as right with himself. ²² Abraham believed in God, and he did what God asked him to do. So you can see that both of these were necessary. When he did this good thing, he showed that he believed in God completely.