Commandment of the Red Heifer
The red heifer ritual is described in the Book of Numbers.
The red heifer (Hebrew פרה אדומה) is a red-colored cow in Judaism, used in a special sacrificial ritual. It was believed that the ashes of a red cow carry the same redemptive stability as the death of a righteous man. The sacrifice of the heifer as a cleansing from sins. An example of a sacrificial cow of conversion in Judaism, Islam and Christianity.