﴿ وَلَيَعْلَمَنَّ ٱللَّهُ ٱلَّذِينَ ءَامَنُوا۟ وَلَيَعْلَمَنَّ ٱلْمُنَٰفِقِينَ ﴾

“[Yea-] and most certainly will God mark out those who have [truly] attained to faith, and most certainly will He mark out the hypocrites.”

When one who calls himself a believer, or mu’min, shows himself to be such only when some advantage is to be gained, but otherwise recants, he reveals himself to be what the Quran calls a hypocrite, or munafiq. A believer in name only, he is not prepared to pay the price of his faith. He and other people like him fail at the very juncture where they are most required to prove their moral worth.