41:44Had We made it a Quran in a foreign language, they would have said, “If only its verses were made clear.” Non-Arabic and an Arab? Say, “For those who believe, it is guidance and healing. But as for those who do not believe: there is heaviness in their ears, and it is blindness for them. These are being called from a distant place.”

41:53We will show them Our proofs on the horizons, and in their very souls, until it becomes clear to them that it is the truth. Is it not sufficient that your Lord is witness over everything?