Matthew Henry Presbyterian @wholebiblehenry

Here we have, I. The descent which the enemies of Israel made upon them, Jdg 6:33. A vast number of Midianites, Amalekites, and Arabians, got together, and came over Jordan, none either caring or daring to guard that important and advantageous pass against them, and they made their headquarters in the valley of Jezreel, in the heart of Manasseh's tribe, not far from Gideon's city.

Commenting on Judges 6:33-40

John Gill Reformed Baptist @doctorgill

And he sent messengers through all Manasseh,.... Of which tribe he was; not only he called by the trumpet that part of the tribe, the Abiezrites, who were within the sound of it, but the rest of the tribe at a greater distance from him he sent messengers to, acquainting them with his design, and inviting them to his assistance.

Jamieson-Fausset-Brown Reformed @jfbcommentary

THE SIGNS. (Jdg 6:33-39) all the Midianites . . . pitched in Jezreel--The confederated troops of Midian, Amalek, and their neighbors, crossing the Jordan to make a fresh inroad on Canaan, encamped in the plains of Esdraelon (anciently Jezreel). The southern part of the Ghor lies in a very low level, so that there is a steep and difficult descent into Canaan by the southern wadies.

Commenting on Judges 6:33-39