Galatians 4:22
For it is written in the law about Abraham's two sons [Gen. 16]; one [was] by his slave woman [Hagar] and the other by the free woman, [his wife, Sarah].
Hebrews 11:11
By [having] faith, Sarah herself received the ability to have children, even though she was [sterile, being] past the age of child-bearing, since she considered God faithful to His promise. [Note: Some translations consider "Abraham" to be the subject of this highly controversial verse. See Lightfoot, pages 222-225].
Acts 7:8
And God gave Abraham the Agreement which required circumcision [as an identifying mark] so when Abraham fathered Isaac he circumcised him when he was eight days old. Then Isaac had a son, Jacob; and Jacob had [as sons] the twelve patriarchs [i.e., ruling fathers of families].
Luke 1:24-25
After those days, his wife Elizabeth became pregnant and she stayed in seclusion for five months, saying,
Luke 1:36
And consider this, your relative Elizabeth is also pregnant with a son in spite of her old age, and [even though] she was said to be unable to have children, she is now six months along.
Romans 9:9
For these are the words of the promise [Gen. 18:10], "I [i.e., God] will come at the appointed time and Sarah will have a son."