'Courageously' in the Bible

Then Saul said to David, “Behold I will give you my older daughter Merab as a wife; only be brave for me and fight the Lord’s battles.” For Saul thought, “My hand shall not be against him, but let the hand of the Philistines be against him.”

Be strong and let us show ourselves courageous for the sake of our people and for the cities of our God; and may the Lord do what is good in His sight.”

Behold, Amariah the chief priest will be over you in all matters of the Lord, and Zebadiah the son of Ishmael, the governor of the house of Judah, in all the king’s matters; and the Levites will serve you as officers. Deal courageously, and may the Lord be with the upright.”