Priest: (The Function he Served Was Superior to That of Other Priests): To Burn Incense
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Exodus 30:7, 8
And Aaron is to burn fragrant incense on it every morning when he tends the lamps. / When Aaron sets up the lamps at twilight, he must burn the incense perpetually before the LORD for the generations to come.
1 Samuel 2:28
And out of all the tribes of Israel I selected your father to be My priest, to offer sacrifices on My altar, to burn incense, and to wear an ephod in My presence. I also gave to the house of your father all the offerings of the Israelites made by fire.
1 Chronicles 23:13
The sons of Amram: Aaron and Moses. Aaron and his descendants were set apart forever to consecrate the most holy things, to burn incense before the LORD, to minister before Him, and to pronounce blessings in His name forever.