Biblically, a harvest represents the gathering and resurrection of the saints, but also includes other aspects of our preparation for God's Kingdom.

The references to trumpets suggest an announcement of a specific event or an alarm of what is to follow. Typically, the events themselves are figurative trumpet blasts.

The Seventh Trumpet is a call to assemble, a call to battle, and announces the arrival of a new ruler, Jesus Christ, separating the wheat from the tares.