Galatians 4:22
For the Scripture says that Abraham had two sons, one by the slave-girl, and one by the free woman.
Hebrews 11:11
Faith made even Sarah herself able to have a child, although she was past the time of life for it, because she thought, that he who had made the promise would keep it.
Acts 7:8
And he made the agreement of circumcision with him, and so Abraham became the father of Isaac and circumcised him on the eighth day, and Isaac became the father of Jacob, and Jacob of the twelve patriarchs.
Luke 1:24-25
Soon afterward his wife Elizabeth began to expect a child, and she kept herself in seclusion for five months.
Luke 1:36
And your relative, Elizabeth, although she is old, is going to give birth to a son, and this is the sixth month with her who was said to be barren.
Romans 9:9
For this is what the promise said: "When I come back at this time next year, Sarah will have a son."