The Revelation is a Grace from your Lord to you (and for all humanity.) Indeed, His Favor unto you (O Messenger) is great indeed! (6:116), (15:19), (87:6-7)
Except as grace from your Rabb! Indeed, His favor upon you is great!
Sayyed Abbas Sadr-Ameli
Save the mercy from your Lord, verily His favour to you is great.
Al-muntakhab fi tafsir al-Qur'an al-Karim
But it is only through the mercy of Allah, your Creator, that it continues to be preserved. Indeed, great is His bounty and much is His grace that abound in you