Sweet spices.
The incense
The incense employed in the service of the Tabernacle was compounded of four ingredients: stacte, onycha, galbanum, and frankincense. It might only be used in the worship of God. The penalty of death was affixed to the making or using of it for profane purposes (Exodus 30:37-38). It is called “holy of holies” (Exodus 30:36), or “most holy.” This incense was burnt morning and evening upon the golden altar of incense, which stood in the holy place (Exodus 30:7-8). We see, here, that in the original institution the burning of incense was the special work of the high priest; the duty is assigned to Aaron himself, not to his sons. Like the shewbread, and the daily sacrifice, the incense also is called “perpetual” (Exodus 30:8). Besides the daily incense, the offering of incense in the Holy of Holies by the high priest on the Day of Atonement, formed a very solemn and important part of the ceremonies of that day. But for the cloud of incense covering the mercy-seat, the high priest would have died on entering the holiest place (Leviticus 16:13). Incense was a symbol, not only of prayer generally, but more especially of intercessory prayer. On one remarkable occasion we find even the power of atoning ascribed to the offering of incense (Numbers 16:46-48). Here the rehearsal, as it were, of the incense-offering of the day of atonement, exercised a similar intercessory and atoning power, even without any accompanying sacrifice or shedding of blood. A wonderful foreshadowing of the more powerful incense-offering of a greater High Priest who “ever liveth,” etc. (E. F. Willis, M. A.).