We often apply the Golden Rule in our dealings with fellow believers. But Jesus did not indicate that we should extend this consideration only to those related to us in the faith.
وَثَانِيًا ،‏ يَجِبُ أَنْ نُحَاوِلَ مَا فِي وِسْعِنَا كَيْ نُعَامِلَ ٱلشَّخْصَ ٱلْآخَرَ بِهٰذِهِ ٱلطَّرِيقَةِ .‏ —‏ ١ كو ١٠ :‏ ٢٤‏ .‏