'Courageous' in the Bible

Now be courageous and prove to be valiant warriors, for your lord Saul is dead. The people of Judah have anointed me as king over them."

Absalom instructed his servants, "Look! When Amnon is drunk and I say to you, 'Strike Amnon down,' kill him then and there. Don't fear! Is it not I who have given you these instructions? Be strong and courageous!"