What does Judges 4:14 mean?

Then Deborah said to Barak, 'Now's the time! The Lord is going ahead of you.' So Barak led his ten thousand men down from Mount Tabor. Judges 4:14 - Modern Text Bible

(Deborah, the prophet and judge, urges Barak to act, assuring him that God is already working for them. Barak responds with courage.)