priest: i.e. the high priest. Some codices, with Samaritan Pentateuch, Septuagint, and Syriac, read it so, as in Numbers 35:28.
Related Commentaries of Numbers 35:32
Numbers 35:32
32 And ye shall take no satisfaction for him that is fled to the city of his refuge, that he should come again to dwell in the land, until the death of the priest.