God replied, “No! Your wife Sarah will give you a son, and you will name him Isaac [He Laughs]. I will make an everlasting promise to him and his descendants.
The Lord said, “I promise I’ll come back to you next year at this time, and your wife Sarah will have a son.” Sarah happened to be listening at the entrance of the tent, which was behind him.
“God gave Abraham circumcision to confirm his promise. So when Abraham’s son Isaac was born, Abraham circumcised him on the eighth day. Isaac did the same to his son Jacob, and Jacob did the same to his twelve sons (the ancestors of our tribes).
Faith enabled Abraham to become a father, even though he was old and Sarah had never been able to have children. Abraham trusted that God would keep his promise.
But I took your ancestor Abraham from the other side of the Euphrates River. I led him through all of Canaan and gave him many descendants. I also gave him Isaac.