39:28
A Quran (in) Arabic without any crookedness so that they may (become) righteous.

20:108
On that Day they will follow the caller, no deviation from it. And (will be) humbled the voices for the Most Gracious, so not you will hear except a faint sound.

3:99
Say, "O People (of) the Book! Why (do) you hinder from (the) way (of) Allah (those) who believe[d], seeking (to make) it (seem) crooked while you (are) witnesses? And not Allah (is) unaware of what you do.

20:107
Not you will see in it any crookedness and not any curve."

7:86
And (do) not sit on every path threatening and hindering from (the) way (of) Allah (those) who believe in Him, and seeking (to make) it crooked. And remember when you were few and He increased you. And see how was (the) end (of) the corrupters.

7:45
Those who hinder from (the) way (of) Allah and seek in it crookedness while they (are) concerning the Hereafter, disbelievers."

11:19
Those who hinder from (the) way (of) Allah and seek (in) it crookedness, while they in the Hereafter [they] (are) disbelievers.

14:3
Those who love more the life (of) the world than the Hereafter, and hinder from (the) Path (of) Allah, and seek in it crookedness, those [in] (are) astray far.

18:1
All Praise (is) for Allah the One Who (has) revealed to His slave the Book, and not (has) made in it any crookedness.