1 Chronicles 12:37-39

Amplified Bible

³⁷ From the other side [east] of the Jordan River, of [the tribes of] Reuben and Gad and the half-tribe of Manasseh, 120,000 men, armed with all kinds of weapons of war for the battle.

³⁸ All these, being men of war arrayed in battle formation, came to Hebron with a perfect (committed) heart to make David king over all Israel; and all the rest of Israel were also of one mind to make David king. ³⁹ They were there with David for three days, eating and drinking, for their relatives had prepared for them.