Numbers 10:9
And if you go to war in your land against any who do you wrong, then let the loud note of the horn be sounded; and the Lord your God will keep you in mind and give you salvation from those who are against you.And if you go to war in your land against any who do you wrong, then let the loud note of the horn be sounded; and the Lord your God will keep you in mind and give you salvation from those who are against you.