Deuteronomy 23:22

²⁰Thou shalt not lend to thy brother on usury of silver, or usury of meat, or usury of anything which thou mayest lend out.

²¹Thou mayest lend on usury to a stranger, but to thy brother thou shalt not lend on usury; that the Lord thy God may bless thee in all thy works upon the land, into which thou art entering to inherit it.

— Deuteronomy 23:22 —

²³But if thou shouldest be unwilling to vow, it is not sin in thee.

²⁴Thou shalt observe the words that proceed from between thy lips; and as thou hast vowed a gift to the Lord God, so shalt thou do that which thou hast spoken with thy mouth.