The sentinel sounds the trumpet (Ezek 33:3-33:3)

“If the sentinel

Sees

The sword coming

Upon the land,

He blows the trumpet.

He warns the people.”

This was pretty simple. The role of the sentinel or the watch person was to sound the trumpet if he saw the enemy coming with a sword into the land. He then warned the people about the impending danger. The Jehovah Witness Christian group have a magazine that they distribute called the “Watch Tower.”