Whenever these soldiers went to war against their enemies, they prayed to God and trusted him to help. That's why the tribes of Reuben, Gad, and East Manasseh defeated the Hagrites and their allies.
The LORD listened to Manasseh's prayer and saw how sorry he was, and so he let him go back to Jerusalem and rule as king. Manasseh knew from then on that the LORD was God.
"LORD All-Powerful, I am your servant, but I am so miserable! Please let me have a son. I will give him to you for as long as he lives, and his hair will never be cut."