Read and reflect on verse 4061 from Surah Az-Zumar: Is it not to God alone that all sincere faith is due? And yet, they who take for their protectors aught beside Him [are wont to say], “We worship them...
أَلَا لِلَّهِ الدِّينُ الْخَالِصُ ۚ وَالَّذِينَ اتَّخَذُوا مِنْ دُونِهِ أَوْلِيَاءَ مَا نَعْبُدُهُمْ إِلَّا لِيُقَرِّبُونَا إِلَى اللَّهِ زُلْفَىٰ إِنَّ اللَّهَ يَحْكُمُ بَيْنَهُمْ فِي مَا هُمْ فِيهِ يَخْتَلِفُونَ ۗ إِنَّ اللَّهَ لَا يَهْدِي مَنْ هُوَ كَاذِبٌ كَفَّارٌ
Is it not to God alone that all sincere faith is due? And yet, they who take for their protectors aught beside Him [are wont to say], “We worship them for no other reason than that they bring us nearer to God.” Behold, God will judge between them [on Resurrection Day] with regard to all wherein they differ [from the truth]: for, verily, God does not grace with His guidance anyone who is bent on lying [to himself and is] stubbornly ingrate!