God is fully aware of their innermost intentions. You shall ignore them, enlighten them, and give them good advice that may save their souls.
أُولٰئِكَ الَّذينَ يَعلَمُ اللَّهُ ما فى قُلوبِهِم فَأَعرِض عَنهُم وَعِظهُم وَقُل لَهُم فى أَنفُسِهِم قَولًا بَليغًا
ulaaa’ikal lazeena ya’la mullaahu maa fee quloobihim fa a’rid ‘anhum wa ‘izhum wa qul lahum feee anfusihim qawlam baleeghaa