Ezekiel 33:1-5

The word of the LORD came to me: “Son of man, speak to your people and say to them: ‘When I bring the sword against a land, and the people of the land choose one of their men and make him their watchman, and he sees the sword coming against the land and blows the trumpet to warn the people, then if anyone hears the trumpet but does not heed the warning and the sword comes and takes their life, their blood will be on their own head. Since they heard the sound of the trumpet but did not heed the warning, their blood will be on their own head. If they had heeded the warning, they would have saved themselves.