What does Judges 4:6 mean?

She sent for Barak, son of Abinoam, from Kedesh in Naphtali, and said, 'The Lord, the God of Israel, commands you: Go, gather ten thousand men from Naphtali and Zebulun, and lead them to Mount Tabor.' Judges 4:6 - Modern Text Bible

(Deborah delivers God's instructions to Barak, calling him to lead a military campaign.)