2430 This is the first of the three episodes here mentioned, his expedition to the west. "Reaching the setting of the sun" does not mean the extreme west, for there is no such thing. West and East are relative terms. It means a western expedition terminated by a "spring of murky water." This has puzzled Commentators, and they have understood this to mean the dark, tempestuous sea. If Dhu al Qarnayn is Alexander the Great, the reference is easily understood to be the Lychnitis (now Ochrida), west of Macedonia . It is fed entirely by underground springs in a limestone region, where the water is never very clear. (See Appendix VI at the end of the Surah). 2431 He had great power and great opportunity. He got authority over a turbulent and unruly people. Was he going to be severe with them and chastise them, or was he going to seek peace at any price, i.e., to wink at violence and injustice so long as it did not affect his power? He chose the better course, as described in the next verse. To protect the weak and the innocent, he punished the guilty and the headstrong, but he remembered always that the true Punishment would come in the Hereafter-the true and final justice before the throne of Allah.