Hebrews 11:12

Wherefore even from one person, and he become dead in respect to these matters, there sprang a race, as the stars of heaven for multitude, and as the sand, which is on the shore of the sea, innumerable.

Revelation 7:9-10

After these things I looked, and beheld a great multitude, which no man could number, out of every nation, and tribe, and people, and tongue, standing before the throne, and before the Lamb, clothed in white robes, and palm branches 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
Wherefore even from one person, and he become dead in respect to these matters, there sprang a race, as the stars of heaven for multitude, and as the sand, which is on the shore of the sea, innumerable.
Revelation 7:9
After these things I looked, and beheld a great multitude, which no man could number, out of every nation, and tribe, and people, and tongue, standing before the throne, and before the Lamb, clothed in white robes, and palm branches in their hands