as a discourse in the Arabic tongue, free of all deviousness, so that they might become conscious of God.

(It is) a Qur'an in Arabic, without any crookedness (therein): in order that they may guard against Evil.

A Lecture in Arabic, containing no crookedness, that haply they may ward off (evil).

An Arabic Qur'an without any crookedness, that they may guard against evil.

[It is] an Arabic Qur'an, without any deviance that they might become righteous.