Leviticus 14:15

15. The priest shall take… oil The administration of the oil to various parts of the person, ending with pouring it upon the head, is the last act in the process of cleansing. Its spiritual significance is no enigma. Oil symbolizes the Holy Spirit. Jesus, as the Messiah, or the Christ, was anointed of the Holy Spirit. Zechariah 4:2-12; Acts 10:38; Hebrews 1:9. Believers endowed with the fulness of the Spirit are said to be anointed. 1 John 2:20; 1 John 2:27. All genuine Christians are etymologically the oiled ones. The restoration of the leper involved two parts the negative, the removal of the impurity by the blood sprinkled; and the positive, the reinvestment with all lost privileges, especially communion with God’s people, and favour with him and the right of access to him. The positive work is typified by the anointing. Entire sanctification consists not only of a death unto sin, but of life unto God. There must be a destructive and a constructive process. The old man must be slain and the new man must be created in righteousness and true holiness.