Judges 6:33-35

33At that time, the Midianites, Amalekites and people of the east made an agreement to fight together. They crossed the Jordan River and they made their camp in the Jezreel valley.

34Then the Lord's Spirit came to Gideon with power. Gideon made a loud noise with a trumpet. He called the men of Abiezer's clan to follow him.

35He sent men to take a message to Manasseh's tribe. He told them to send their men to join him. He also told the men of the tribes of Asher, Zebulun and Naphtali to come and join him too. They all came to meet with Gideon.