'Enemy' in the Bible

For I was ashamed to require of the king a band of soldiers and horsemen to help us against the enemy in the way; for we had spoken to the king saying, The hand of our God is upon all them for good that seek him; but his power and his anger is against all them that forsake him.

And we departed from the river Ahava on the twelfth of the first month, to go to Jerusalem; and the hand of our God was upon us, and he delivered us from the hand of the enemy, and of such as lay in wait by the way.