1 Samuel 13:23

And the garrison of the Philistines, a post or vanguard from the main army, went out to the passage, or pass, of Michmash, as a protection against the Israelites, who might otherwise have slipped up through some of the valleys converging at this point and surprised the Philistine camp. The invariable result of forsaking the Lord is distress and tribulation, the object of such visitations being to cause the backsliders to repent of their sins and to place their full reliance upon the Lord.