Some time later, all the Midianites, Amalekites, and other easterners joined together, came over, and set up camp in the Jezreel Valley.
References for Judges 6:33
Then the LORD's spirit came over Gideon, and he sounded the horn and summoned the Abiezrites to follow him.
He sent messengers into all of Manasseh, and they were also summoned to follow him. Then he sent messengers into Asher, Zebulun, and Naphtali too, and they marched up to meet them.
But then Gideon said to God, "To see if you really intend to rescue Israel through me as you have declared,
I'm now putting a wool fleece on the threshing floor. If there is dew only on the fleece but all the ground is dry, then I'll know that you are going to rescue Israel through me, as you have declared."
And that is what happened. When he got up early the next morning and squeezed the fleece, he wrung out enough dew from the fleece to fill a bowl with water.
Then Gideon said to God, "Don't be angry with me, but let me speak just one more time. Please let me make just one more test with the fleece: now let only the fleece be dry and let dew be on all the ground."
And God did so that night. Only the fleece was dry, but there was dew on all the ground.