The first design of Saul and Jonathan was to free then land from the garrisons which the Philistines had in it; and they first begin to clear their own country of Benjamin. Geba; not the same place called Gibeah, 1 Samuel 13:2, (for if the place were the same, why should he vary the name of it in the same story, and in the next verse? nor is it likely that Jonathan would choose that place for his camp where the Philistines had a garrison,) but another place in the same tribe, in which there were two distinct places, Geba and Gibeah, Joshua 18:24,28. Let the Hebrews hear, i.e. he sent messengers to tell them all what Jonathan had done, and how the Philistines were enraged at it, and made great preparations for war; and therefore what necessity there was of gathering themselves together, and coming to him, for his and their own defence.
Related Commentaries of 1 Samuel 13:3
1 Samuel 13:3
3 And Jonathan smote the garrison of the Philistines that was in Geba,a and the Philistines heard of it. And Saul blew the trumpet throughout all the land, saying, Let the Hebrews hear.