'Number' in the Bible

But Isaiah cries out concerning Israel:Though the number of Israel’s sonsis like the sand of the sea,only the remnant will be saved;

Now if their stumbling brings riches for the world, and their failure riches for the Gentiles, how much more will their full number bring!

So that you will not be conceited, brothers, I do not want you to be unaware of this mystery: A partial hardening has come to Israel until the full number of the Gentiles has come in.