Ad-Dukhaan (The Smoke)

58. Certainly, We have made this [Qur’an] facile in your tongue so that they may remember.

59. Await then [for your triumph]; indeed, they are also awaiting [their ominous fate].

The purpose behind the revelation of the Holy Qur’an is to make people remember that they are God’s servants.

The Holy Qur’an is revealed as the last guidance sent down to people saying unto them that if they fail to acknowledge that It is Divine Revelation they should await Divine Wrath.

The last two Verses says unto man that God Almighty sent down the Holy Qur’an in the Arabic tongue in order that upon noticing Its unsurpassed Eloquence and Inimitability, they perceive that it springs from the springhead of Divine Emanation. Thus, they may remember and believe in the prophethood of the Messenger of God (S).

The blessed Verse addresses the Prophet (S) saying

“O Muhammad! Await their being guided to the true path since disbelievers await your fate.”

The Verse apparently implies that you await their guidance and felicity where as they await your defeat and death.