Isaiah 18:3; Isaiah 27:13; Isaiah 58:1

Isaiah 18:3

3 All you people of the world, you who live on the earth, when a banner is raised on the mountains, you will see it, and when a trumpet sounds, you will hear it.

Isaiah 27:13

13 And in that day a great trumpet will sound. Those who were perishing in Assyria and those who were exiled in Egypt will come and worship the LORD on the holy mountain in Jerusalem.

Isaiah 58:1

1 “Shout it aloud, do not hold back. Raise your voice like a trumpet. Declare to my people their rebellion and to the descendants of Jacob their sins.