Yehezkiel 48:31

48:31 the gates of the city ¹  will be named for the tribes of Israel; there will be three gates to the north: one gate for Reuben, one gate for Judah, and one gate for Levi.

Yehezkiel 41:23

41:23 The outer sanctuary and the inner sanctuary each had a double door.

[48:31]  ¹ sn See Rev 21:12-14.