Galatians 4:22
For it is written that Abraham had two sons, the one by a bondwoman, and the other by a free.
Hebrews 11:11
By faith also that very Sarah, who was barren, received ability for the conception of seed, and past the usual time of life brought forth a child, because she accounted that he who promised it, would be true to his promise.
Acts 7:8
And he gave him the covenant of circumcision: and so he begat Isaac, and circumcised him on the eighth day; and Isaac Jacob, and Jacob the twelve patriarchs.
Luke 1:24-25
And after those days Elisabeth his wife conceived, and kept herself in retirement five months, saying,
Luke 1:36
And, behold, Elisabeth thy cousin, she also hath conceived in her old age: and this is the fifth month [of pregnancy] with her who was called barren.
Romans 9:9
For the word of promise is this, At that time will I come, and Sarah shall have a son.