2:41And believe in what I revealed, confirming what is with you; and do not be the first to deny it; and do not exchange My revelations for a small price; and be conscious of Me.

2:174Those who conceal what God revealed in the Book, and exchange it for a small price—those swallow nothing but fire into their bellies. And God will not speak to them on the Day of Resurrection, nor will He purify them, and they will have a painful punishment.

2:249When Saul set out with the troops, he said, “God will be testing you with a river. Whoever drinks from it does not belong with me. But whoever does not drink from it, does belong with me, except for whoever scoops up a little with his hand.” But they drank from it, except for a few of them. Then, when he crossed it, he and those who believed with him, they said, “We have no strength to face Goliath and his troops today.” But those who knew that they would meet God said, “How many a small group has defeated a large group by God’s will. God is with the steadfast.”

2:282O you who believe! When you incur debt among yourselves for a certain period of time, write it down. And have a scribe write in your presence, in all fairness. And let no scribe refuse to write, as God has taught him. So let him write, and let the debtor dictate. And let him fear God, his Lord, and diminish nothing from it. But if the debtor is mentally deficient, or weak, or unable to dictate, then let his guardian dictate with honesty. And call to witness two men from among you. If two men are not available, then one man and two women whose testimony is acceptable to all—if one of them fails to remember, the other would remind her. Witnesses must not refuse when called upon. And do not think it too trivial to write down, whether small or large, including the time of repayment. That is more equitable with God, and stronger as evidence, and more likely to prevent doubt—except in the case of a spot transaction between you—then there is no blame on you if you do not write it down. And let there be witnesses whenever you conclude a contract, and let no harm be done to either scribe or witness. If you do that, it is corruption on your part. And fear God. God teaches you. God is aware of everything.