Ahijah] See chap. 11. v. 29.
conspired] Traiterously, as chap. 16. 9, 20. 2 Kings 12:20. his treason is aggravated by the time when, and place where he did it.
Gibbethon] A city in the tribe of Dan, given to the Levites, Joshua 21:23.
Philistines] Who possessed it at that time.
laid siege] To recover it: which, because he effected not in his time, the people after him renewed the siege, chap. 16. v. 15.