'Enemy' in the Bible

'In Thy people Israel being smitten before an enemy, because they sin against Thee, and they have turned back unto Thee, and have confessed Thy name, and prayed, and made supplication unto Thee in this house,

Famine -- when it is in the land; pestilence -- when it is; blasting, mildew, locust; caterpillar -- when it is; when its enemy hath distressed it in the land in its gates, any plague, any sickness, --

'When Thy people doth go out to battle against its enemy, in the way that Thou dost send them, and they have prayed unto Jehovah the way of the city which thou hast fixed on, and of the house which I have builded for Thy name;

'When they sin against Thee (for there is not a man who sinneth not), and Thou hast been angry with them, and hast given them up before an enemy, and they have taken captive their captivity unto the land of the enemy far off or near;

And Ahab saith unto Elijah, 'Hast thou found me, O mine enemy?' and he saith, 'I have found -- because of thy selling thyself to do the evil thing in the eyes of Jehovah;