Translation of the verse 12 from Surah Al-Lail : Number of verses 21 - - page 596 - Part 30.
Truly! Ours it is (to give) guidance,
Indeed, [incumbent] upon Us is guidance.
(92:12) Surely it is for Us to show the Right Way, *7
*7) That is, Allah as the Creator of man has on the basis of His wisdom, His justice and His mercy, taken of Himself the responsibility not to leave him uninformed in the world, but to tell him what is the right way and what are the wrong ways, what is good and what is evil , what is lawful and what is unlawful, what attitude and conduct will make him an obedient servant and what attitude and conduct will make him a disobedient servant. This same thing has been expressed in Surah An-Nahl; thus: "Allah has taken upon Himself to show the Right Way, when there are also crooked ways." (v.9) (For explanation, See E.N. 9 of AnNahl).
Source : Al-Lail Verse 12: Indeed, [incumbent] upon Us is guidance.