[63] [cap.19] And it has not fallen to the lot of all the suppliants to become guardians of the holy things, but to those only who have arrived at the number fifty, which proclaims remission of offences and perfect liberty and a return to their ancient possessions. "For this," says the Scripture, "is the law concerning the Levites: from twenty-five years old and upwards, they shall go in to wait upon the service of the tabernacle of the congregation: and from the age of fifty years they shall cease waiting upon the service thereof, and shall serve no more; but shall minister with their brethren in the tabernacle of the congregation, and they shall keep what is to be kept, and shall do no service." [49]