and along the borders of the sons of Manasseh, Beth-shean, Taanach, Megiddo, Dor, with all their towns. In these [places] lived the sons of Joseph the son of Israel (Jacob).

Some Manassites defected to David when he went with the Philistines to fight against Saul. However, they did not help the Philistines because the Philistine rulers sent David away after a discussion. They said, “It will be our heads if he defects to his master Saul.”

When he went to Ziklag some Manassites deserted to him: Adnah, Jehozabad, Jediael, Michael, Jozabad, Elihu, and Zillethai, heads of the thousands that [were] for Manasseh.

and, his brethren that were heroes of valour, were two thousand and seven hundred, ancestral chiefs, - so David the king gave them oversight, over the Reubenites and the Gadites and the half tribe of Manassites, in all the affairs of God, and the affairs of the king.