What does Deuteronomy 14:29 mean?

Then the Levites, foreigners, orphans, and widows in your area can come and eat their fill, so the Lord your God will bless everything you do. Deuteronomy 14:29 - Modern Text Bible

(This local tithe is for those who need help—Levites, immigrants, and people without families. Sharing with them brings God's blessing on your work.)