For the Amalekites and the Canaanites are there before you, and you shall fall by the sword; because you have turned away from the LORD, the LORD will not be with you."
Numbers 14:43
Surrounding context
14:42 Do not go up, lest you be defeated by your enemies, for the LORD is not among you.
14:43 For the Amalekites and the Canaanites are there before you, and you shall fall by the sword; because you have turned away from the LORD, the LORD will not be with you."
14:44 But they presumed to go up to the mountaintop. Nevertheless, neither the ark of the covenant of the LORD nor Moses departed from the camp.