These things therefore being manifest to us, and since we look into the depths of the divine knowledge, it behoves us to do all things in [their proper] order, which the Lord has com- manded us to perform at stated times.' He has enjoined offerings [to be presented] and service to be performed [to Him], and that not thought- lessly or irregularly, but at the appointed times and hours. Where and by whom He desires these things to be done. He Himself has fixed by His own supreme will, in order that all things being piously done according to His good pleas- ure, may be acceptable unto Him.^ Those, therefore, who present their offerings at the ap- pointed times, are accepted and blessed ; for inasmuch as they follow the laws of the Lord, they sin not. For his own peculiar services are assigned to the high priest, and their own proper place is prescribed to the priests, and their own special ministrations devolve on the Levites. The layman is bound by the laws that pertain to laymen.