'Trumpet' in the Bible

‘They have blown the trumpet and have made everything ready, but no one is going to the battle, for My wrath is against all their multitude [of people].

and he sees the sword coming on the land, and he blows the trumpet and warns the people,

then whoever hears the sound of the trumpet and does not take warning, and a sword comes and takes him away, his blood will be on his [own] head.

He heard the sound of the trumpet but did not take warning; his blood shall be on himself. But if he had taken warning, he would have saved his life.

But if the watchman sees the sword coming and does not blow the trumpet and the people are not warned, and the sword comes and takes any one of them, he is taken away because of his corruption and sin; but I will require his blood from the watchman’s hand.’