Deuteronomy 23:12-22

12 `And a station thou hast at the outside of the camp, and thou hast gone out thither without,
13 and a nail thou hast on thy staff, and it hath been, in thy sitting without, that thou hast digged with it, and turned back, and covered thy filth;
14 for Jehovah thy God is walking up and down in the midst of thy camp, to deliver thee, and to give thine enemies before thee, and thy camp hath been holy, and He doth not see in thee the nakedness of anything, and hath turned back from after thee
15 `Thou dost not shut up a servant unto his lord, who is delivered unto thee from his lord;
16 with thee he doth dwell, in thy midst, in the place which he chooseth within one of thy gates, where it is pleasing to him; thou dost not oppress him.
17 `There is not a whore among the daughters of Israel, nor is there a whoremonger among the sons of Israel;
18 thou dost not bring a gift of a whore, or a price of a dog, into the house of Jehovah thy God, for any vow; for the abomination of Jehovah thy God [are] even both of them.
19 `Thou dost not lend in usury to thy brother; usury of money, usury of food, usury of anything which is lent on usury
20 To a stranger thou mayest lend in usury, and to thy brother thou dost not lend in usury, so that Jehovah thy God doth bless thee in every putting forth of thy hand on the land whither thou goest in to possess it.
21 `When thou vowest a vow to Jehovah thy God, thou dost not delay to complete it; for Jehovah thy God doth certainly require it from thee, and it hath been in thee -- sin
22 `And when thou forbearest to vow, it is not in thee a sin.