Luke 1:13

But the angel said to him, "Do not be afraid, Zechariah, for your prayer is heard; and your wife Elizabeth will bear you a son, and you shall call his name John.

Romans 9:8-9

In other words, it is not the children of the flesh who are the children of God, but the children of the promise are reckoned as descendants.

Galatians 4:23

But the son by the slave was born according to the flesh, and the son by the free woman through the promise.

Galatians 4:28

Now you, brethren, like Isaac, are children of 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, Zechariah, for your prayer is heard; and your wife Elizabeth will bear you a son, and you shall call his name John.
Romans 9:8
In other words, it is not the children of the flesh who are the children of God, but the children of the promise are reckoned as descendants.
Galatians 4:23
But the son by the slave was born according to the flesh, and the son by the free woman through the promise.