Then1 We gave Moses the Scripture, making complete [Our favor] upon the one who did good [i.e., Moses] and as a detailed explanation of all things and as guidance and mercy that perhaps in the meeting with their Lord they would believe.
Translation: Saheeh International (English)
1 Meaning "additionally" or "moreover," not denoting time sequence.
After all this, I relate to you that I gave the Torah to Moses as a completion of My favour and a reward for his good actions, to make everything required in religion clear, and as a mercy in the hope that they would have faith in the meeting with their Lord on the Day of Judgement and prepare for it with good actions.