“You may charge a foreigner interest; but you shall not charge your brother interest, that Yahweh your God may bless you in all that you put your hand to, in the land where you go in to possess it.”
Deuteronomy 23:20 (WEB)
Context Reading
18You shall not bring the hire of a prostitute, or the wages of a male prostitute,into the house of Yahweh your God for any vow; for both of these are an abomination to Yahweh your God. 19You shall not lend on interest to your brother: interest of money, interest of food, interest of anything that is lent on interest. 20You may charge a foreigner interest; but you shall not charge your brother interest, that Yahweh your God may bless you in all that you put your hand to, in the land where you go in to possess it. 21When you vow a vow to Yahweh your God, you shall not be slack to pay it, for Yahweh your God will surely require it of you; and it would be sin in you. 22But if you refrain from making a vow, it shall be no sin in you.