1 Chronicles 12:22
"For at that time day by day there came to David to help him, until it was a great host, like the host of God."
Cross References (ranked by relevance)
Now there was long war between the house of Saul and the house of David: but David waxed stronger and stronger, and the house of Saul waxed weaker and weaker.
The righteous also shall hold on his way, and he that hath clean hands shall be stronger and stronger.
And he said, Nay; but as captain of the host of the LORD am I now come. And Joshua fell on his face to the earth, and did worship, and said unto him, What saith my lord unto his servant?
And when Jacob saw them, he said, This is God’s host: and he called the name of that place Mahanaim.
Praise ye him, all his angels: praise ye him, all his hosts.