Ezekiel 44:2 - Matthew Poole's English Annotations on the Holy Bible

Likely the prophet was somewhat surprised, and wondered that the door should be shut; and while he museth on it the Lord speaks to him out of the temple, and informs him, and satisfieth him. Shall not be opened, i.e. shall not ordinarily stand open, but be shut till occasion requires it should sometimes be opened. No man; none of the common ordinary sort of people, or none but the prince, God's vicegerent, and the ministering priests. The God of Israel hath entered in: what was the glory of the God of Israel, Ezekiel 43:2, is here the Lord, the God of Israel, that glory was the visible sign of his presence. His glory is himself, and where that entered he entered, i.e. gave evidence of a more than ordinary presence there. It shall be shut; either kept shut with bars, or, by a prohibition, be as if it were shut, that none should enter thereby.