13 There were three gates on the east, three on the north, three on the south, and three on the west.
Revelation 21:13 Cross References - MSB
Ezekiel 48:31-34
31 the gates of the city will be named after the tribes of Israel. On the north side there will be three gates: the gate of Reuben, the gate of Judah, and the gate of Levi.
32 On the east side, which will be 4,500 cubits long, there will be three gates: the gate of Joseph, the gate of Benjamin, and the gate of Dan.
33 On the south side, which will be 4,500 cubits long, there will be three gates: the gate of Simeon, the gate of Issachar, and the gate of Zebulun.
34 And on the west side, which will be 4,500 cubits long, there will be three gates: the gate of Gad, the gate of Asher, and the gate of Naphtali.