Before, as guidance for the people. And He revealed the Criterion [i.e., the Qur’ān]. Indeed, those who disbelieve in the verses of Allāh will have a severe punishment, and Allāh is Exalted in Might, the Owner of Retribution.1
Translation: Saheeh International (English)
1 i.e., He who restores justice by punishing those who persist in wrongdoing, fail to heed warnings and are unrepentant.
All of these divine books contained guidance and directed people to the best of this world and theAfterlife. He revealed the Criterion to differentiate between truth and falsehood, and between guidance and misguidance. Disbelievers in the verses Allah has revealed to you will receive a severe punishment. Allah is Mighty and nothing can overpower Him. He is also able to take retribution from those who reject His messengers and go against His instruction.