John Wesley on Leviticus 21:23

To the veil - To the second veil which was between the holy and the most holy place, to burn incense, to order the shew - bread, and to dress the lamps, which were nigh unto that veil though without. My altar - The altar of burnt - offering, which was without the sanctuary. The sense is, he shall not execute the priest's office, which was to be done in those two places.