1 Chronicles 12:19; 1 Chronicles 12:22

19 Some of the men of Manasseh deserted to David when he came with the Philistines for the battle against Saul. (Yet he did not help them, for the rulers of the Philistines took counsel and sent him away, saying, "At peril to our heads he will desert to his master Saul.")

22 For from day to day men came to David to help him, until there was a great army, like an army of God.