The last sentence is سَأُرِ‌يكُمْ دَارَ‌ الْفَاسِقِين . "I will show you the abode of the sinners". This is a kind of promise by Allah that the Israelites shall soon take over Egypt or perhaps Syria, referred to as the abode of the sinners in this verse. There are two views about the reference to the abode of the sinners. The first holds that the reference has been made to Egypt while the second takes it to refer to Syria. The difference of opinion is, in fact, based on a question whether the Israelites had returned to Egypt after the destruction of Pharaoh and his people or not. If they went back to Egypt at that time and ruled the land, as has been indicated by the verse 137 saying that Allah made the Israelites inherit the land, then, this verse definitely has referred to Syria, as the abode of the sinners. It is because, in this case, the Israelites had taken over the land of Egypt before this event of Allah's light appearing to the Mount of Sinai. In case, they did not go to Egypt after the destruction of Pharaoh, the reference may be to Egypt and Syria, both.

The phrase وَكَتَبْنَا لَهُ فِي الْأَلْوَاحِ “ And we wrote for him everything on the Tablets” makes us understand that the Torah was given to the Prophet Musa علیہ السلام inscribed or written on the Tablets. (1)

(1) Another view with regard to these tablets is that these tablets were given to him prior to the revelation of the Torah and were not the part of the Torah. This has been cited by Allama Shabbir Ahmad Usmani under his comments on this verse. He has cited it from Ibn Kathir. (Translator)