2 Samuel 15:10

Then Absalom sent spies throughout the tribes of Israel with this message: “When you hear the sound of the horn, you are to say, ‘Absalom reigns in Hebron!’”

¶ But Absalom sent spies throughout all the tribes of Israel, saying, As soon as ye hear the sound of the trumpet, then ye shall say, Absalom reigneth in Hebron.