Deuteronomy 15:11-14

11There will always be poor people in the land. Therefore I command you to be openhanded toward your fellow Israelites who are poor and needy in your land. 12If any of your people—Hebrew men or women—sell themselves to you and serve you six years, in the seventh year you must let them go free. 13And when you release them, do not send them away empty-handed. 14Supply them liberally from your flock, your threshing floor and your winepress. Give to them as the Lord your God has blessed you.