Nehemiah 4:12-14

12So each of the builders had his sword strapped to his side while they were building, and the shofar blower was beside me.

13Then I said to the nobles, the rulers and the rest of the people, “The work is extensive and spread out, and we are widely separated from one another on the wall.

14Wherever you hear the sound of the shofar, join us there. Our God will fight for us!”