Charles Ellicott Commentary Ezekiel 46:2

"And the prince shall enter by the way of the porch of the gate without, and shall stand by the post of the gate; and the priests shall prepare his burnt-offering and his peace-offerings, and he shall worship at the threshold of the gate: then he shall go forth; but the gate shall not be shut until the evening." — Ezekiel 46:2 (ASV)

Stand by the post of the gate.— The prince is to enter the sanctuary by the east gate of the outer court, pass through that court to the inner gate, and worship at the threshold of the gate immediately adjoining the inner court, while the priests prepare his sacrifices. But he is not to enter the inner court, or to assume any priestly functions. Afterwards he is to go out by the same way (Ezekiel 46:8 and Ezekiel 44:3), and the gate stands open until evening, though no one else is to enter through it.