'Sand of the Sea' in the Bible

And you said, Truly, I will be good to you, and make your seed like the sand of the sea which may not be numbered.

So he got together a store of grain like the sand of the sea; so great a store that after a time he gave up measuring it, for it might not be measured.

For then its weight would be more than the sand of the seas: because of this my words have been uncontrolled.

He sent down meat on them like dust, and feathered birds like the sand of the sea,

For though your people, O Israel, are as the sand of the sea, only a small number will come back: for the destruction is fixed, overflowing in righteousness.

I have let their widows be increased in number more than the sand of the seas: I have sent against them, against the mother and the young men, one who makes waste in the heat of the day, causing pain and fears to come on her suddenly.

As it is not possible for the army of heaven to be numbered, or the sand of the sea measured, so will I make the seed of my servant David, and the Levites my servants.

But still the number of the children of Israel will be like the sand of the sea, which may not be measured or numbered; and in place of its being said to them, You are not my people, it will be said to them, You are the sons of the living God

And Isaiah says about Israel, Even if the number of the children of Israel is as the sand of the sea, only a small part will get salvation:

And he took his place on the sand of the sea. And I saw a beast coming up out of the sea, having ten horns and seven heads, and on his horns ten crowns, and on his heads unholy names.