Contradiction with Deuteronomy 20:1
This verse encourages not fearing enemies due to God’s presence, contradicting the context of Judges 4:7 where Barak shows fear by requiring Deborah's presence to go into battle.
Deuteronomy 20:1: When thou goest out to battle against thine enemies, and seest horses, and chariots, [and] a people more than thou, be not afraid of them: for the LORD thy God [is] with thee, which brought thee up out of the land of Egypt.
Contradiction with Isaiah 41:10
It promises God’s help and strength, seemingly contradicting the need for Deborah to accompany Barak for assurance in Judges 4:7.
Isaiah 41:10: Fear thou not; for I [am] with thee: be not dismayed; for I [am] thy God: I will strengthen thee; yea, I will help thee; yea, I will uphold thee with the right hand of my righteousness.