Judges 6:36

Barak said unto [Deborah], if thou wilt go with me, then I will go: but if thou wilt not go with me, then I will not go. God subdued on that day Jabin the king of Canaan.

Gideon . . . feared his father's household, and the men of the city, that he could not do it by day, . . . did it by night. And Gideon said unto God, If thou wilt save Israel by mine hand as thou hast said, . . . let me prove, I pray thee. And God did so.