Ezekiel 3:17 in the King James Version
Son of man, I have made thee a watchman unto the house of Israel: therefore hear the word at my mouth, and give them warning from me.
Context
16 At the end of seven days, the LORD’s word came to me, saying,
17 “Son of man, I have made you a watchman to the house of Israel. Therefore hear the word from my mouth, and warn them from me.
18 When I tell the wicked, ‘You will surely die;’ and you give him no warning, nor speak to warn the wicked from his wicked way, to save his life, that wicked man will die in his iniquity; but I will require his blood at your hand.