Hebrews 11:12
And thus there sprang from one man, and him practically dead, a nation like the stars of the sky in number, and like the sands on the sea shore which cannot be counted.
Romans 4:17-19
so that the promise should be made sure to all Abraham's true descendants; not merely to those who are righteous through the Law, but to those who are righteous through a faith like that of Abraham. Thus in the sight of God in whom he believed, who gives life to the dead and makes reference to things that do not exist, as though they did, Abraham is the forefather of all of us. As it is written, "I have appointed you to be the forefather of many nations."
Romans 9:27
And Isaiah cries aloud concerning Israel, "Though the number of the sons of Israel be like the sands of the sea, only a remnant of them shall be saved;
Revelation 20:8
and will go out to lead astray the nations in all the four corners of the earth, Gog and Magog, and assemble them for war, and they are like the sands on the seashore in number.