Q: According to the Book of Judges (1:19), why couldn't the tribe of Judah drive out the Canaanite inhabitants of the plain?

a) Because the Judahites had sinned
b) Because the Canaanite deity was more powerful
c) Because they possessed iron chariots
d) Because they had lost the Ark of the Covenant

A: c. Judges 1:19 says, "The LORD was with Judah, and he (Judah) took possession of the hill country, but could not drive out the inhabitants of the plain, because they had iron chariots."