Luke 1:13-20
But the angel said to him, "Do not be afraid, Zechariah, because your prayer has been heard, and your wife Elizabeth will bear you a son, and you must name him John.
Romans 9:6-9
But it is not that God's word has failed. For not everybody that is descended from Israel really belongs to Israel,
Galatians 4:28-31
Now we, brothers, like Isaac, are children born to fulfill the promise.
Treasury of Scripture Knowledge
Summary
And God said, Sarah thy wife shall bear thee a son indeed; and thou shalt call his name Isaac: and I will establish my covenant with him for an everlasting covenant, and with his seed after him.
General references
Bible References
General references
Luke 1:55
as He promised our forefathers, Abraham and his descendants forever."