18. The money earned by a prostitute, either a male or female, must not be brought to the special house of the Lord your God. That money cannot be used to pay for a gift that was promised to the Lord your God, because that kind of sin is disgusting to him.
19. “When you loan something to another Israelite, you must not charge interest. Don’t charge interest on money, on food or on anything that may earn interest.
20. You may charge interest to a foreigner. But you must not charge interest to another Israelite. If you follow these rules, the Lord your God will bless you in everything you do in the land where you are going to live.
21. “When you make a promise to the Lord your God, don’t be slow to pay everything you promised. The Lord your God will demand that you pay it. You will sin if you don’t pay what you promised.