Final answer:
Barak was the Israelite commander summoned by Deborah to help defeat the Canaanites at Mount Tabor, as recounted in the Book of Judges.
Step-by-step explanation:
The Israelite commander that Deborah called upon to help defeat the Canaanites at Mount Tabor was Barak. In the biblical account, detailed in the Book of Judges, Deborah was a prophet and a judge who instructed Barak to gather an army and mount an attack against the Canaanite forces led by Sisera, the commander of King Jabin's army. The story illustrates the vital role Deborah played in securing victory for the Israelites against their enemies, an action that contributed to the Israelites' ability to settle in the land of Canaan.