Ezekiel 33:1-3

American Standard Version

33 And the word of Jehovah came unto me, saying, ² Son of man, speak to the children of thy people, and say unto them, When I bring the sword upon a land, and the people of the land take a man from among them, and set him for their watchman; ³ if, when he seeth the sword come upon the land, he blow the trumpet, and warn the people;