Appeal to human conscience and reason

وَجَآءَهُۥ قَوْمُهُۥ يُهْرَعُونَ إِلَيْهِ وَمِن قَبْلُ كَانُوا۟ يَعْمَلُونَ ٱلسَّيِّـَٔاتِ ۚ قَالَ يَـٰقَوْمِ هَـٰٓؤُلَآءِ بَنَاتِى هُنَّ أَطْهَرُ لَكُمْ ۖ فَٱتَّقُوا۟ ٱللَّهَ وَلَا تُخْزُونِ فِى ضَيْفِىٓ ۖ أَلَيْسَ مِنكُمْ رَجُلٌ رَّشِيدٌ

And his people came hastening to him, and before [this] they had been doing evil deeds. He said, "O my people, these are my daughters; they are purer for you. So fear Allāh and do not disgrace me concerning my guests. Is there not among you a man of reason?"