I the Lord, which Sanctify you. - Leviticus 21:8,15,23
This chapter is full of restrictions and cautions against anything that might defile the priests, the sons of Aaron. The holiness of God was set in a clear light by the care that there should be no ceremonial pollution or personal defect in those who ministered before His presence. What Aaron and his sons were in the ancient typical worship, that Jesus and His people are in the spiritual dispensation which has taken its place. "Ye are an elect race, a royal priesthood, a holy nation, a people for God's own possession."
How holy we should be "in all manner of living"! What may be innocent and natural for others would be wrong and inconsistent in us. Even the pointing of the beard after the fashion of the nations around, and for appearance' sake, was forbidden them; and contact with death in the home of domestic mourning. These, with many such like cautions, indicate that our spiritual separation for the service of God must enter into the minutest details. The clothes we wear, the books we read, the amusements we engage in, the details of the home-life - will all be affected by the thought, "I have been set apart for God; the anointing of the Spirit is on me; I am called to offer Him the bread of a holy life; I may not do as others, who have not realized the sacredness of life, as I do; and who may permit without compunction what I forego."
This is a high ideal; and it is only practicable to those who realize the thrice-made announcement of our text, that God will sanctify us: setting us apart for Himself - by the precious blood of Christ, by the anointing of the Spirit, and by the separation of our thoughts, and aims, and practices.