The entering — The persons who may, and who may not enter. The sanctuary — Taken here for the courts, rather than the house itself.
Related Commentaries of Ezekiel 44:5
Ezekiel 44:5
5 And the LORD said unto me, Son of man, mark well,a and behold with thine eyes, and hear with thine ears all that I say unto thee concerning all the ordinances of the house of the LORD, and all the laws thereof; and mark well the entering in of the house, with every going forth of the sanctuary.