1 Samuel 13:3

Then Jonathan attacked the Philistine outpost at Geba, and the Philistines heard about it. So Saul blew the ram’s horn throughout the land, saying, “Let the Hebrews hear!”

And Jonathan smote the garrison of the Philistines that was in Geba, and the Philistines heard of it. And Saul blew the trumpet throughout all the land, saying, Let the Hebrews hear.