Deuteronomy 23:17

for the LORD your God walks in the middle of your camp, to deliver you, and to give up your enemies before you. Therefore your camp shall be holy, that he may not see an unclean thing in you, and turn away from you.

You shall not deliver to his master a servant who has escaped from his master to you.

He shall dwell with you, among you, in the place which he shall choose within one of your gates, where it pleases him best. You shall not oppress him.

You shall not bring the hire of a prostitute, or the wages of a male prostitute, into the house of the LORD your God for any vow; for both of these are an abomination to the LORD your God.

You shall not lend on interest to your brother: interest of money, interest of food, interest of anything that is lent on interest.

You may charge a foreigner interest; but you shall not charge your brother interest, that the LORD your God may bless you in all that you put your hand to, in the land where you go in to possess it.