Luke 1:13-20
But the angel said to him, "Do not be afraid, Zechariah, for your petition has been heard: and your wife Elizabeth will bear you a son, and you are to call his name John.
Romans 9:6-9
Not however that God's word has failed; for all who have sprung from Israel do not count as Israel,
Galatians 4:28-31
But you, brethren, like Isaac, are children born in fulfilment of a 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
In fulfillment of His promises to our forefathers--For Abraham and his posterity for ever."