Biblical typology
Ezekiel 44:1–3
The closed gate
1 And he brought me back to the way of the gate of the outward sanctuary, which looked towards the east: and it was shut.
2 And the Lord said to me: This gate shall be shut, it shall not be opened, and no man shall pass through it: because the Lord the God of Israel hath entered in by it, and it shall be shut
3 For the prince. The prince himself shall sit in it, to eat bread before the Lord: he shall enter in by the way of the porch of the gate, and shall go out by the same way.
Douay–Rheims · Challoner revision · Ezechiel 44:1–3
Why this matters
The prophet describes an eastern sanctuary gate reserved because the Lord entered through it. Some Christian Fathers applied this image to Mary’s perpetual virginity. Its literal subject is the sanctuary; it is not a direct historical prediction about Mary.