'Warning' in the Bible

Son of man, I have made you a watchman to the house of Israel: therefore hear the word from my mouth, and give them warning from me.

When I tell the wicked, You shall surely die; and you give him no warning, nor speak to warn the wicked from his wicked way, to save his life; the same wicked man shall die in his iniquity; but his blood will I require at your hand.

Again, when a righteous man does turn from his righteousness, and commit iniquity, and I lay a stumbling block before him, he shall die: because you have not given him warning, he shall die in his sin, and his righteous deeds which he has done shall not be remembered; but his blood will I require at your hand.

Nevertheless if you warn the righteous man, that the righteous not sin, and he does not sin, he shall surely live, because he took warning; and you have delivered your soul.

then whoever hears the sound of the trumpet, and doesn't take warning, if the sword come, and take him away, his blood shall be on his own head.

He heard the sound of the trumpet, and didn't take warning; his blood shall be on him; whereas if he had taken warning, he would have delivered his soul.

So you, son of man, I have set you a watchman to the house of Israel; therefore hear the word at my mouth, and give them warning from me.