God sent Al-Quran for understanding!  

 

Verse 242 of Chapter 2
Allah thus makes clear to you His communications that you may understand.

 

Verse 3 of Chapter 43

We have made it a Qur’an in Arabic, that ye may be able to understand (and learn wisdom).
 

Verse 58 of Chapter 44

Verily, We have made this (Qur’an) easy, in thy tongue, in order that they may give heed.

Verse 17 of Chapter 54
And We have indeed made the Qur'an easy to understand and remember; then is there anyone who will remember