Here we learn about Israel's practice of tithing, giving to the Levites 10% of what their land produced. Should Christians follow this practice? What did Jesus and the apostles teach about giving, and how did the early Church put those teachings into practice? In this lesson we also consider the sacrifice of the red heifer and the associated water of purification. From two early Christian writers we gain insights into an unexpected (and stunning) foreshadowing of the spiritual cleansing available through Christ.