Deborah
Who is Deborah?
Judges 4:4 And Deborah, a prophetess, the wife of Lapidoth, she judged Israel at that time.
Judges 4:5 And she dwelt under the palm tree of Deborah between Ramah and Bethel in mount Ephraim: and the children of Israel came up to her for judgment.
Why did she come to power?
Judges 4:1 And the children of Israel again did evil in the sight of the LORD, when Ehud was dead.
Judges 4:2 And the LORD sold them into the hand of Jabin king of Canaan, that reigned in Hazor; the captain of whose host [was] Sisera, which dwelt in Harosheth of the Gentiles.
Judges 4:3 And the children of Israel cried unto the LORD: for he had nine hundred chariots of iron; and twenty years he mightily oppressed the children of Israel.
Instructions of Deborah
Towards Barak the son of Abinoam out of Kedeshnaphtali
Story here in Judges 4:6 onwards