And the Lord spake unto Moses,.... At the same time he gave the instructions about the consecration of the Levites, the time of their entrance on their service, and of leaving it, was fixed:

saying; as follows.

The Levitical period of service is fixed here at twenty-five years of age and upwards to the fiftieth year. "This is what concerns the Levites," i.e., what follows applies to the Levites. "From the age of twenty-five years shall he (the Levite) come to do service at the work of the tabernacle; and at fifty years of age shall he return from the service of the work, and not work any further, but only serve his brethren at the tabernacle in keeping charge," i.e., help them to look after the furniture of the tabernacle. "Charge" (mishmereth), as distinguished from "work," signified the oversight of all the furniture of the tabernacle (see Numbers 3:8); "work" (service) applied to laborious service, e.g., the taking down and setting up of the tabernacle and cleaning it, carrying wood and water for the sacrificial worship, slaying the animals for the daily and festal sacrifices of the congregation, etc.

And the LORD spake unto Moses, saying,

8:5-26 Here we have directions for the solemn ordination of the Levites. 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 others. All who are employed for God, must be dedicated to him, according to the employment. Christians must be baptized, ministers must be ordained; we must first give ourselves unto the Lord, and then our services. The Levites must be cleansed. They must be clean that bear the vessels of the Lord. Moses must sprinkle the water of purifying upon them. This signifies the application of the blood of Christ to our souls by faith, that we may be fit to serve the living God. God declares his acceptance of them. All who expect to share in the privileges of the tabernacle, must resolve to do the service of the tabernacle. As, on the one hand, none of God's creatures are his necessary servants, he needs not the service of any of them; so none are merely honorary servants, to do nothing. All whom God owns, he employs; angels themselves have their services.