'Warn' in the Bible

Yahweh said to Moses, "Go down, warn the people, lest they break through to Yahweh to gaze, and many of them perish.

The king sent and called for Shimei, and said to him, "Didn't I adjure you by Yahweh, and warn you, saying, 'Know for certain, that on the day you go out, and walk abroad any where, you shall surely die?' You said to me, 'The saying that I have heard is good.'

Whenever any controversy shall come to you from your brothers who dwell in their cities, between blood and blood, between law and commandment, statutes and ordinances, you shall warn them, that they not be guilty towards Yahweh, and so wrath come on you and on your brothers. Do this, and you shall not be guilty.

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.

Yet if you warn the wicked, and he doesn't turn from his wickedness, nor from his wicked way, he shall die in his iniquity; but you have delivered your soul.

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.

if, when he sees the sword come on the land, he blow the trumpet, and warn the people;

When I tell the wicked, O wicked man, you shall surely die, and you don't speak to warn the wicked from his way; that wicked man shall die in his iniquity, but his blood will I require at your hand.

Nevertheless, if you warn the wicked of his way to turn from it, and he doesn't turn from his way; he shall die in his iniquity, but you have delivered your soul.

But I will warn you whom you should fear. Fear him, who after he has killed, has power to cast into Gehenna. Yes, I tell you, fear him.