Deuteronomy 23:20

but only to a foreigner. For you shall lend to your brother whatever he needs without interest, so that the Lord your God may bless you in all your works in the land, which you shall enter so as to possess it

Other versions

King James Version

Unto a stranger thou mayest lend upon usury; but unto thy brother thou shalt not lend upon usury: that the LORD thy God may bless thee in all that thou settest thine hand to in the land whither thou goest to possess it.

English Standard Version

You may charge a foreigner interest, but you may not charge your brother interest, that the LORD your God may bless you in all that you undertake in the land that you are entering to take possession of it.

New International Version

You may charge a foreigner interest, but not a brother Israelite, so that the LORD your God may bless you in everything you put your hand to in the land you are entering to possess.