Hebrews 11:12

Therefore, there were born of one, who was dead as it respects these things, a posterity like the stars of heaven in multitude, and like the sand on the sea-shore, innumerable.

Revelation 7:9-10

After this I saw, and behold, a great multitude, that no one could number, out of all nations and tribes and peoples and tongues, standing before the throne, and before the Lamb, clothed with white robes, and there were palms in their hands;

Treasury of Scripture Knowledge

Summary

As the host of heaven cannot be numbered, neither the sand of the sea measured: so will I multiply the seed of David my servant, and the Levites that minister unto me.

Bible References

The host

Hebrews 11:12
Therefore, there were born of one, who was dead as it respects these things, a posterity like the stars of heaven in multitude, and like the sand on the sea-shore, innumerable.
Revelation 7:9
After this I saw, and behold, a great multitude, that no one could number, out of all nations and tribes and peoples and tongues, standing before the throne, and before the Lamb, clothed with white robes, and there were palms in their hands;