'Sound of the Trumpet' in the Bible

My bowels, my bowels! I am pained at my very heart; my heart maketh a noise in me; I cannot hold my peace, because thou hast heard, O my soul, the sound of the trumpet, the alarm of war.

How long shall I see the standard, and hear the sound of the trumpet?

Also I set watchmen over you, saying, Hearken to the sound of the trumpet. But they said, We will not hearken.

Saying, No; but we will go into the land of Egypt, where we shall see no war, nor hear the sound of the trumpet, nor have hunger of bread; and there will we dwell: