²¹ Now it’s your turn to instruct me. All of you who want to live by the rules of the law, are you really listening to and heeding what the law teaches? Listen to this: ²² it’s recorded in the Scripture that Abraham was the father of two sons. One son was born to a slave woman, Hagar, and the other son was born to a free woman, Abraham’s wife, Sarah. ²³ The slave woman’s son was born through only natural means, but the free woman’s son was born through a promise from God.