'Courageous' in the Bible

Therefore, be strong and courageous, for though Saul your lord is dead, the house of Judah has anointed me king over them.”

Be strong, be courageous on behalf of our people and for the cities of our God, and may the LORD do what he thinks is best."

Now Absalom had commanded his servants, saying, Mark ye now when Amnon's heart is merry with wine, and when I say unto you, Smite Amnon; then kill him, fear not: have not I commanded you? be courageous, and be valiant.