"[Shall I seek other than Allah as judge, while it is He who has sent down to you the Book, explained in detail?]" meaning: clarified, as He has made clear therein guidance and misguidance, and the lawful and the unlawful.

"[And those to whom We gave the Scripture know that it is sent down from your Lord in truth]" meaning: the learned among the People of the Scripture. "[So never be among the doubters]" meaning: those who doubt that this Quran is from Allah, and [know] that the learned among the People of the Scripture know that it is sent down from your Lord in truth.