By faith even Sarah herself, when she was unable to have children, received power to conceive offspring, even though she was past the age, since she considered that the one who had promised was faithful.
And so he gave Abraham the covenant of circumcision. After this, he fathered Isaac and circumcised him on the eighth day. Isaac became the father of Jacob, and Jacob became the father of the twelve patriarchs.
The Lord said, ‘I will certainly come back to you in about a year’s time, and your wife Sarah will have a son! ’ Now Sarah was listening at the entrance of the tent behind him.
But God said, ‘No. Your wife Sarah will bear you a son, and you will name him Isaac. I will confirm my covenant with him as a permanent covenant for his future offspring.
But I took your father Abraham from the region beyond the River Euphrates, led him throughout the land of Canaan, and multiplied his descendants. I gave him Isaac,