Real courage is when you know you’re licked before you begin, but you begin anyway and see it through no matter what. (from To Kill a Mockingbird)
It doesn’t take much courage when you’re playing against an inferior talent; the only danger there might be overconfidence. But, when you are in a no-win encounter, it’s very easy to give up even though doing so might bring more long-lasting results than just losing this single conflict. Don’t accept apparent defeat as inevitable; give it your best and carry on bravely.
Wait patiently for the Lord. Be brave and courageous. . . Those who trust in the Lord are as secure as Mount Zion; they will not be defeated but will endure forever. (Psalm 27:14; 125:1)