Some Hebrews even crossed the Jordan into the land of Gad and Gilead. Saul, however, remained at Gilgal, and all his troops were quaking in fear.
We are not told wherein it was that the people of Israel offended God, so as to forfeit his presence and turn his hand against them, as Samuel had threatened (Sa1 12:15); but doubtless they left God, else he would not have left them, as here it appears he did; for, I. Saul was very weak and impolitic, and did not order his affairs with discretion.
Commenting on 1 Samuel 13:1-7
And some of the Hebrews went over Jordan to the land of Gad and Gilead,.... As far off as they could from the Philistines, who lay on the west of the land of Israel, and these countries were to the east.
And [some of] the Hebrews went over Jordan to the land of Gad and Gilead. As for Saul, he [was] yet in Gilgal, and all the people followed him trembling. (f) Where the two tribes and the half remained.