Parallel
Leviticus 21:10
King James Version (1769 Blayney revision, with Apocrypha) · Berean Standard Bible
And he that is the high priest among his brethren, upon whose head the anointing oil was poured, and that is consecrated to put on the garments, shall not uncover his head, nor rend his clothes;
The priest who is highest among his brothers, who has had the anointing oil poured on his head and has been ordained to wear the priestly garments, must not let his hair hang loose (note: Or must not uncover his head) or tear his garments.