1 Chronicles 12:22

For at that time day by day there came to David to help him, gradually increasing the number of his followers, until it was a great host, like the host of God. From having only six hundred men loyal to him, his army soon grew so as to include hundreds, thousands, and finally hundreds of thousands, a great and powerful host. Thus the Lord, who directs the hearts of men as the rivers of water, helped the cause of David, who put his trust in Him alone.