Trumpet: Sounded in Time of Danger
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Ezekiel 33:3–6
and he sees the sword coming against that land and blows the ram’s horn to warn the people. / Then if anyone hears the sound of the horn but fails to heed the warning, and the sword comes and takes him away, his blood will be on his own head. / Since he heard the sound of the horn but failed to heed the warning, his blood will be on his own head. If he had heeded the warning, he would have saved his life.
Joel 2:1
Blow the ram’s horn in Zion; sound the alarm on My holy mountain! Let all who dwell in the land tremble, for the Day of the LORD is coming; indeed, it is near—