²¹ But my covenant I will establish with Isaac, whom Sarah shall bear to you at this season next year.”

⁸ Then he gave him the covenant of circumcision. And so Abraham^[a] became the father of Isaac and circumcised him on the eighth day, and Isaac did likewise to Jacob and Jacob to the twelve patriarchs.^(A)

²² For it is written that Abraham had two sons, one by an enslaved woman and the other by a free woman.^(A)

¹¹ By faith, with Sarah’s involvement, he received power of procreation, even though he was too old, because he considered^[a] him faithful who had promised.^(A)