And it is said to those who guard (against evil): What is it that your Lord has revealed? They say, Good. For those who do good in this world is good, and certainly the abode of the hereafter is better; and certainly most excellent is the abode of those who guard (against evil);

Allah has revealed the best announcement, a book conformable in its various parts, repeating, whereat do shudder the skins of those who fear their Lord, then their skins and their hearts become pliant to the remembrance of Allah; this is Allah's guidance, He guides with it whom He pleases; and (as for) him whom Allah makes err, there is no guide for him.

And follow the best that has been revealed to you from your Lord before there comes to you the punishment all of a sudden while you do not even perceive;