'Do Not Fear' in the Bible

David said to him, “Do not fear, for I will surely show kindness to you for the sake of your father Jonathan, and will restore to you all the land of your grandfather Saul; and you shall eat at my table regularly.”

Absalom commanded his servants, saying, “See now, when Amnon’s heart is merry with wine, and when I say to you, ‘Strike Amnon,’ then put him to death. Do not fear; have not I myself commanded you? Be courageous and be valiant.”