Amatul Rahmân Omer:
Had We made it a Qur´ân in indistinct and inexpressive language, these (faultfinders) would have surely said, `Why has not (the subject matter of) its verses been made clear in exposition?´ What! can indistinct and inexpressive language and an eloquently clear language (be one and the same thing). Say, `It is a wonderful guidance and healing to those who believe.´ But (as to those) who do not believe there is deafness in their ears and this (Qur´ân) is obscure to them (with regard to its factual truth). And they are (as if to say) being called to from a place afar.
Surah Fussilat (They are Explained in Detail) Ayat 44