He shall put onיִלְבָּשׁa holyקֹדֶשׁlinenבַּדtunic,כְּתֹנֶתand linenבַדundergarmentsוּמִכְנְסֵיshall beיִהְיוּonעַלhis body,בְּשָׂרוֹand he shall tieוּ יַחְגֹּרa linenבַּדsash around him,בְאַבְנֵטand wrap his headוּ יִצְנֹףwith a linenבַּדturban;בְמִצְנֶפֶתtheyהֵםare holyקֹדֶשׁgarments.בִּגְדֵיHe shall batheוְרָחַץhis bodyאֶת בְּשָׂרוֹin waterבַּמַּיִםand put them on.וּלְבֵשָׁם
Context
For this rite the high priest does not wear the garments of gold, blue, purple and scarlet of Exodus 28, but only linen garments, which he leaves in the tent when he finishes (16:23).
Source: Exodus 28:6; Leviticus 16:23
Documented fact
Day of Expiation (Yom Kippur)יוֹם הַכִּפֻּרִיםyom hakkippurim
The tenth day of the seventh month: a day of rest and of “afflicting the soul,” on which the high priest went in behind the veil with blood to make expiation for the sanctuary, the priests and the people (Leviticus 16; 23:27-32).
See it in the glossary