Deuteronomy 14:22-23

New International Version - UK

Tithes

²² Be sure to set aside a tenth of all that your fields produce each year. ²³ Eat the tithe of your corn, new wine and olive oil, and the firstborn of your herds and flocks in the presence of the Lord your God at the place he will choose as a dwelling for his Name, so that you may learn to revere the Lord your God always.