'Warn' in the Bible

warn them of the statutes and the laws, and make known to them the way in which they must walk and the work they must do.

The Lord directed Moses, “Go down and warn the people not to break through to see the Lord; otherwise many of them will die.

Moses said to the Lord, “The people cannot come up to Mount Sinai, for You warned us, saying, ‘Set bounds about the mountain and consecrate it.’”