Quran 10:104 — Jonah (Younus)

قُل يٰأَيُّهَا النّاسُ إِن كُنتُم فى شَكٍّ مِن دينى فَلا أَعبُدُ الَّذينَ تَعبُدونَ مِن دونِ اللَّهِ وَلٰكِن أَعبُدُ اللَّهَ الَّذى يَتَوَفّىٰكُم ۖ وَأُمِرتُ أَن أَكونَ مِنَ المُؤمِنينَ

Say, "O people, if you have any doubt regarding my religion, I do not worship what you worship beside GOD. I worship GOD alone; the One who will terminate your lives. I am commanded to be a believer."

[10:103] We ultimately save our messengers and those who believe. It is our immutable law that we save the believers.

[10:105] I was commanded: "Keep yourself devoted to the religion of monotheism; you shall not practice idol worship.