Beyond actual transactions, trade serves here as an image: the most profitable sale is selling oneself to Allah, and the worst is exchanging guidance for error or Allah’s signs for a small price. These verses also present trade as the lawful alternative to usury and deal with taking witnesses in transactions and with forbidden purchases.
Verses gathered from a topical index of the Quran, in Mushaf order; every verse is quoted in full.
And indeed, among the People of the Scripture are those who believe in Allāh and what was revealed to you and what was revealed to them, [being] humbly submissive to Allāh. They do not exchange the verses of Allāh for a small price. Those will have their reward with their Lord. Indeed, Allāh is swift in account.