Bible Verses About Watchmen: Sounded an alarm at the approach of enemies

Sonne of man, speake to the children of thy people, and say vnto them, When I bring the sworde vpon a lande, if the people of the lande take a man from among them, and make him their watchman,

If when hee seeth the sworde come vpon ye land, he blow the trumpet, and warne the people,