20, 21. (a) Give an example showing that we must keep on mustering up courage. (b) Under what circumstances may we need to display courage, and of what can we be certain?
٢٠ ،‏ ٢١ ‏ (‏ أ )‏ اُذْكُرُوا مِثَالًا يُظْهِرُ أَنَّ ٱلشَّجَاعَةَ لَازِمَةٌ لِمُوَاجَهَةِ ٱلظُّرُوفِ ٱلصَّعْبَةِ .‏