13 Sisera summoned from Harosheth Haggoyim to the Kishon River all his men and his nine hundred chariots fitted with iron.

Read Judges 4:13 Using Other Translations

And Sisera gathered together all his chariots, even nine hundred chariots of iron, and all the people that were with him, from Harosheth of the Gentiles unto the river of Kishon.
Sisera called out all his chariots, chariots of iron, and all the men who were with him, from Harosheth-hagoyim to the river Kishon.
he called for all 900 of his iron chariots and all of his warriors, and they marched from Harosheth-haggoyim to the Kishon River.