The lampstand was to be cared for constantly, and the flame was to be ascending to the Heavens at all times. Aaron and his sons were to be the caretakers of the lampstand just outside the Most Holy Place.
The Lord gave additional instructions as to the design and makeup of the priestly garments. Aaron and his sons would be the priests unto the Lord. In order to serve the temple, they must wear particular garments, for glory and for beauty. Gifted artisans would make a breastplate, an ephod, a robe, a woven tunic, a turban, and a sash. These would be the garments in which they would offer service to God in His temple.
While this particular passage may not have specific detail, it does give a picture of the ways in which God determined for worship to be performed. When God gives instructions, it is for our good, that we may offer God worship that is acceptable unto Him. When we listen to God’s word and His instruction, we can find a place of rest in Him that is sweet and peaceful that will lead us further into our walk with God. Listen to what God is saying and worship Him accordingly.