20 Whenever they go into the Tent of meeting they are to be washed with water, to keep them from death; and whenever they come near to do the work of the altar, or to make an offering by fire to the Lord, 21 Their hands and feet are to be washed. so that they may be safe from death: this is an order to them for ever; to him and his seed from generation to generation.

The Anointing Oil and the Incense

22 And the Lord said to Moses, 23 Take the best spices, five hundred shekels' weight of liquid myrrh, and of sweet cinnamon half as much, that is, two hundred and fifty shekels, and two hundred and fifty shekels of sweet calamus, 24 And of cassia, five hundred shekels' weight measured by the scale of the holy place, and of olive oil a hin: 25 And make these into a holy oil, a perfume made by the art of the perfume-maker; it is to be a holy oil. 26 This oil is to be put on the Tent of meeting, and on the ark of the law, 27 And on the table and all its vessels, and on the support for the lights, with its vessels, and on the altar for burning spices, 28 And on the altar of burned offerings with its vessels, and on the washing-vessel and its base. 29 And you are to make them most holy; anything touching them will become holy. 30 And put the oil on Aaron and his sons, making them holy to do the work of priests to me. 31 And say to the children of Israel, This is to be the Lord's holy oil, from generation to generation. 32 It is not to be used for man's flesh, and no other is to be made like it: holy it is, and you are to keep it holy. 33 Whoever makes any like it, or puts it on one who is not a priest, will be cut off from his people.

Matthew Henry's Commentary on Exodus 30:20-33

Commentary on Exodus 30:17-21

(Read Exodus 30:17-21)

A large vessel of brass, holding water, was to be set near the door of the tabernacle. Aaron and his sons must wash their hands and feet at this laver, every time they went in to minister. This was to teach them purity in all their services, and to dread the pollution of sin. They must not only wash and be made clean, when first made priests, but must wash and be kept clean, whenever they went to minister. It teaches us daily to attend upon God, daily to renew our repentance for sin, and our looking to the blood of Christ for remission; for in many things we daily offend.

Commentary on Exodus 30:22-38

(Read Exodus 30:22-38)

Directions are here given for making the holy anointing oil, and the incense to be used in the service of the tabernacle. To show the excellency of holiness, there was this spiced oil in the tabernacle, which was grateful to the sight and to the smell. Christ's name is as ointment poured forth, Ecclesiastes 7:1. The incense burned upon the golden altar was prepared of sweet spices. When it was used, it was to be beaten very small; thus it pleased the Lord to bruise the Redeemer, when he offered himself for a sacrifice of a sweet-smelling savour. The like should not be made for any common use. Thus God would keep in the people's minds reverence for his own services, and teach us not to profane or abuse any thing whereby God makes himself known. It is a great affront to God to jest with sacred things, and to make sport with his word and ordinances. It is most dangerous and fatal to use professions of the gospel of Christ to forward wordly interests.