Luke 1:13-20

But the angel said unto him, Fear not, Zacharias: for thy prayer is heard; and thy wife Elisabeth shall bring thee a son, and thou shalt call his name John.

Romans 9:6-9

Now it is not supposable that the word of God hath failed. For these are not all Israel, who are of Israel:

Galatians 4:28-31

So we, brethren, as Isaac, are the children of 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 had spoken to our fathers, to Abraham, and to his seed.