Numbers 8:5

Consecration of the Levites for their service in the sanctuary. - The choice of the Levites for service in the sanctuary, in the place of the first-born of the people generally, has been already noticed in Num 3:5., and the duties binding upon them in Num 4:4. But before entering upon their duties they were to be consecrated to the work, and then formally handed over to the priests. This consecration is commanded in Num 8:7., and is not called קדּשׁ, like the consecration of the priests (Exo 29:1; Lev 8:11), but טהר to cleanse. It consisted in sprinkling them with sin-water, shaving off the whole of the hair from their bodies, and washing their clothes, accompanied by a sacrificial ceremony, by which they were presented symbolically to the Lord as a sacrifice for His service. The first part of this ceremony had reference to outward purification, and represented cleansing from the defilement of sin; hence the performance of it is called התחטּא (to cleanse from sin) in Num 8:21. "Sprinkle sin-water upon them." The words are addressed to Moses, who had to officiate at the inauguration of the Levites, as he had already done at that of the priests. "Water of sin" is water having reference to sin, designed to remove it, just as the sacrifice offered for the expiation of sin is called חטּאת (sin) in Lev 4:14, etc.; whilst the "water of uncleanness" in Num 19:9, Num 19:13, signifies water by which uncleanness was removed or wiped away. The nature of this purifying water is not explained, and cannot be determined with any certainty. We find directions for preparing sprinkling water in a peculiar manner, for the purpose of cleansing persons who were cured of leprosy, in Lev 14:5., 50ff.; and also for cleansing both persons and houses that had been defiled by a corpse, in Num 19:9…

We read before of the separating of the Levites from among the children of Israel when they were numbered, and the numbering of them by themselves (Num 3:6, Num 3:15), that they might be employed in the service of the tabernacle. Now here we have directions given for their solemn ordination (Num 8:6), and the performance of it, Num 8:20. All Israel must know that they took not this honour to themselves, but were called of God to it; nor was it enough that they were distinguished from their neighbours, but they must be solemnly devoted to God. Note, All that are employed for God must be dedicated to him, according as the degree of employment is. Christian musts be baptized, ministers must be ordained; we must first give ourselves unto the Lord, and then our services. Observe in what method this was done: I. The Levites must be cleansed, and were so. The rites and ceremonies of their cleansing were to be performed, 1. By themselves. They must wash their clothes, and not only bathe, but shave all their flesh, as the leper was to do when he was cleansed, Lev 14:8. They must cause a razor to pass over all their flesh, to clear themselves from that defilement which would not wash off. Jacob, whom God loved, was a smooth man; it was Esau that was hairy. The great pains they were to take with themselves to make themselves clean teaches all Christians, and ministers particularly, by repentance and mortification, to cleanse themselves from all filthiness of flesh and spirit, that they may perfect holiness. Those must be clean that bear the vessels of the Lord. 2. By Moses. He must sprinkle the water of purifying upon them, which was prepared by divine direction. This signified the application of the blood of Christ to our souls by faith, to purify us from an evil conscience, that…

8:5-22 The Lord prescribed the dedication and cleansing of the Levites.