2 Samuel 13:28

Now, Absalom had commanded his servants, saying, Mark ye now when Amnon's heart is merry with wine, when, under the influence of wine, he would throw aside caution, and when I say unto you, Smite Amnon, then kill him, fear not; have not I commanded you? He would take the responsibility of the murder upon himself, his purpose being chiefly to avenge his sister Tamar, but probably also to remove the crown prince, an act which would make him the heir apparent to the throne. Be courageous, and be valiant. The servants of Absalom needed this encouragement very much since they stood in awe of the king and his anger.