en_tn/lev/16/23.md

and take off the linen garments

These were the special garments Aaron wore only when he entered the most holy place.

He must bathe his body in water in a holy place

Here "holy place" does not refer to the tent of meeting. This was a different place set aside for him to bathe himself.

put on his normal garments

These are the clothes that Aaron wore for his ordinary duties.