Exodus 30

9. Ye shall offer no strange incense--that is, of a different composition from that of which the ingredients are described so minutely.

11-16. When thou takest the sum of the children of Israel, &c.--Moses did so twice, and doubtless observed the law here prescribed. The tax was not levied from women, minors, old men ( Numbers 1:42 Numbers 1:45 ), and the Levites ( Numbers 1:47 ), they being not numbered. Assuming the shekel of the sanctuary to be about half an ounce troy, though nothing certain is known about it, the sum payable by each individual was fifty cents. This was not a voluntary contribution, but a ransom for the soul or lives of the people. It was required from all classes alike, and a refusal to pay implied a wilful exclusion from the privileges of the sanctuary, as well as exposure to divine judgments. It was probably the same impost that was exacted from our Lord ( Matthew 17:24-27 ), and it was usually devoted to repairs and other purposes connected with the services of the sanctuary.

18-21. Thou shalt . . . make a laver of brass--Though not actually forming a component part of the furniture of the tabernacle, this vase was closely connected with it; and though from standing at the entrance it would be a familiar object, it possessed great interest and importance from the baptismal purposes to which it was applied. No data are given by which its form and size can be ascertained; but it was probably a miniature pattern of Solomon's--a circular basin.
his foot--supposed not to be the pedestal on which it rested, but a trough or shallow receptacle below, into which the water, let out from a cock or spout, flowed; for the way in which all Eastern people wash their hands or feet is by pouring upon them the water which falls into a basin. This laver was provided for the priests alone. But in the Christian dispensation, all believers are priests, and hence the apostle exhorts them how to draw near to God ( John 13:10 , Hebrews 10:22 ).

23-33. Take thou also . . . principal spices, &c.--Oil is frequently mentioned in Scripture as an emblem of sanctification, and anointing with it a means of designating objects as well as persons to the service of God. Here it is prescribed by divine authority, and the various ingredients in their several proportions described which were to compose the oil used in consecrating the furniture of the tabernacle.
myrrh--a fragrant and medicinal gum from a little known tree in Arabia.
sweet cinnamon--produced from a species of laurel or sweet bay, found chiefly in Ceylon, growing to a height of twenty feet: this spice is extracted from the inner bark, but it is not certain whether that mentioned by Moses is the same as that with which we are familiar.
sweet calamus--or sweet cane, a product of Arabia and India, of a tawny color in appearance; it is like the common cane and strongly odoriferous.

24. cassia--from the same species of tree as the cinnamon--some think the outer bark of that tree. All these together would amount to one hundred twenty pounds, troy weight.
hin--a word of Egyptian origin, equal to ten pints. Being mixed with the olive oil--no doubt of the purest kind--this composition probably remained always in a liquid state, and the strictest prohibition issued against using it for any other purpose than anointing the tabernacle and its furniture.

34-38. the Lord said unto Moses, Take unto thee sweet spices--These were:
stacte--the finest myrrh;
onycha--supposed to be an odoriferous shell;
galbanum--a gum resin from an umbelliferous plant.
frankincense--a dry, resinous, aromatic gum, of a yellow color, which comes from a tree in Arabia, and is obtained by incision of the bark. This incense was placed within the sanctuary, to be at hand when the priest required to burn on the altar. The art of compounding unguents and perfumes was well known in Egypt, where sweet-scented spices were extensively used not only in common life, but in the ritual of the temples. Most of the ingredients here mentioned have been found on minute examination of mummies and other Egyptian relics; and the Israelites, therefore, would have the best opportunities of acquiring in that country the skill in pounding and mixing them which they were called to exercise in the service of the tabernacle. But the recipe for the incense as well as for the oil in the tabernacle, though it receives illustration from the customs of Egypt, was peculiar, and being prescribed by divine authority, was to be applied to no common or inferior purpose.