Ezekiel 44:2-3

2The Lord said to me, “This gate is to remain shut. It must not be opened; no one may enter through it. It is to remain shut because the Lord, the God of Israel, has entered through it.

3The prince himself is the only one who may sit inside the gateway to eat in the presence of the Lord. He is to enter by way of the portico of the gateway and go out the same way.”