Ezekiel 3:18-19

18I may say to a wicked person, “Your punishment will be death.” Then you must warn that person. You must tell him to stop doing wicked things so that he may save his life. If you do not tell the wicked person this, he will die because of his sins. But I will say that you are guilty, as if you had killed him yourself.

19So you must warn the wicked person. If you warn him, he still may not stop doing wicked things. Then that wicked person will die because of his sins. But you will have saved your own life.