Luke 1:13

But the Angel said to him. "Do not be afraid, Zachariah, because your petition has been heard, and your wife Elizabeth will bear you a son, and you are to call him John.

Romans 9:8-9

That is, it is not the children of the flesh who are children of God; but the children of the promise are counted as his posterity.

Galatians 4:23

but while the son by the slave woman was born according to the flesh, the son by the free woman was born in fulfilment of a promise.

Galatians 4:28

But you, brothers, are like Isaac, children of the promise;

Treasury of Scripture Knowledge

Summary

And he said, I will certainly return unto thee according to the time of life; and, lo, Sarah thy wife shall have a son. And Sarah heard it in the tent door, which was behind him.

Bible References

Lo, sarah

Luke 1:13
But the Angel said to him. "Do not be afraid, Zachariah, because your petition has been heard, and your wife Elizabeth will bear you a son, and you are to call him John.
Romans 9:8
That is, it is not the children of the flesh who are children of God; but the children of the promise are counted as his posterity.
Galatians 4:23
but while the son by the slave woman was born according to the flesh, the son by the free woman was born in fulfilment of a promise.