Ezekiel 33:6-9

6But if the watchman see the sword coming, and blow not the trumpet, and the people be not warned, if the sword come and take a person from among them, he is taken away in his iniquity; but his blood will I require at the watchman's hand.

7So thou, son of man, I have set thee a watchman unto the house of Israel; and thou shalt hear the word from my mouth, and warn them from me.

8When I say unto the wicked, Wicked [man], thou shalt certainly die; and thou speakest not to warn the wicked from his way, that wicked [man] shall die in his iniquity; but his blood will I require at thy hand.

9But if thou warn the wicked of his way to turn from it, and he do not turn from his way, he shall die in his iniquity; but thou hast delivered thy soul.