13:1-7 Saul reigned one year, and nothing particular happened; but in his second year the events recorded in this chapter took place. For above a year he gave the Philistine time to prepare for war, and to weaken and to disarm the Israelites. When men are lifted up in self-sufficiency, they are often led into folly. The chief advantages of the enemies of the church are derived from the misconduct of its professed friends. When Saul at length sounded an alarm, the people, dissatisfied with his management, or terrified by the power of the enemy, did not come to him, or speedily deserted him.

1Sa 13:3, 4. He Calls the Hebrews to Gilgal against the Philistines.

3, 4. And Jonathan—that is, "God-given."

smote the garrison of the Philistines … in Geba—Geba and Gibeah were towns in Benjamin, very close to each other (Jos 18:24, 28). The word rendered "garrison" is different from that of 1Sa 13:23; 14:1, and signifies, literally, something erected; probably a pillar or flagstaff, indicative of Philistine ascendency. That the secret demolition of this standard, so obnoxious to a young and noble-hearted patriot, was the feat of Jonathan referred to, is evident from the words, "the Philistines heard of it," which is not the way we should expect an attack on a fortress to be noticed.

Saul blew the trumpet throughout all the land—This, a well-known sound, was the usual Hebrew war-summons; the first blast was answered by the beacon fire in the neighboring places. A second blast was blown—then answered by a fire in a more distant locality, whence the proclamation was speedily diffused over the whole country. As the Philistines resented what Jonathan had done as an overt attempt to throw off their yoke, a levy, en masse, of the people was immediately ordered, the rendezvous to be the old camping-ground at Gilgal.