Deuteronomy 14:29

14:29 Then the Levites (because they have no allotment or inheritance with you), the resident foreigners, the orphans, and the widows of your villages may come and eat their fill so that the Lord your God may bless you in all the work you do.

Deuteronomy 15:10

15:10 You must by all means lend to him and not be upset by doing it, for because of this the Lord your God will bless you in all your work and in everything you attempt.