Ezekiel 33:1-7 ASV

1 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;
4 then whosoever heareth the sound of the trumpet, and taketh not warning, if the sword come, and take him away, his blood shall be upon his own head.
5 He heard the sound of the trumpet, and took not warning; his blood shall be upon him; whereas if he had taken warning, he would have delivered his soul.
6 But if the watchman see the sword come, and blow not the trumpet, and the people be not warned, and the sword come, and take any person from among them; he is taken away in his iniquity, but his blood will I require at the watchman's hand.
7 So thou, son of man, I have set thee a watchman unto the house of Israel; therefore hear the word at my mouth, and give them warning from me.