A strong reason why all should acknowledge God and act accordingly is their inner sense of right and wrong.
كَتَبَ بُولُسُ :‏ « اَلْأُمَمُ ٱلَّذِينَ لَيْسَتْ عِنْدَهُمْ شَرِيعَةٌ ،‏ مَتَى فَعَلُوا بِٱلطَّبِيعَةِ مَا فِي ٱلشَّرِيعَةِ » .‏