'Courageous' in the Bible

Then you will prosper if you take care to do the statutes and judgments which Yahweh commanded Moses concerning Israel. Be strong and be courageous; fear not and do not be dismayed.

Then David said to Solomon his son, "Be strong and courageous, and do [this]! Do not be afraid and do not be dismayed, for Yahweh God, my God, [is] with you. He will not fail you and will not forsake you until all the work of the service of the house of Yahweh is finished.