Judges 4:3

And the sons of Joseph said, “The hill country is not enough for us, and all the Canaanites who live in the valley land have chariots of iron, both those who are in Beth-shean and its towns and those who are in the valley of Jezreel.”

Now Yahweh was with Judah, and they took possession of the hill country; but they could not dispossess the inhabitants of the valley because they had iron chariots.

So Sisera called together all his chariots, 900 iron chariots, and all the people who were with him, from Harosheth-hagoyim to the river Kishon.

Their enemies oppressed them, And they were subdued under their hand.