1 Samuel 13:17
And the spoilers came out of the camp of the Philistines in three companies: one company turned unto the way that leadeth to Ophrah, unto the land of Shual:
Cross-reference
In 1 Samuel 14:15, the Philistine 'spoilers' (raiders) from the main verse are mentioned again, trembling after Jonathan's attack.
In 1 Samuel 11:11, Saul also divides his forces into three companies to attack the Ammonites — a similar military strategy to the Philistine raiders here.
In 2 Samuel 7:10, God promises Israel rest from enemies like the Philistines who are raiding in the main verse — a contrast between present trouble and future peace.
In Joshua 18:23, Ophrah is listed among towns of Benjamin — the same location mentioned in the main verse as a route of Philistine raiders.
In 2 Kings 5:2, Syrian raiding parties capture a girl — similar to the Philistine raiders in the main verse who go out in companies.