Ezekiel 48:31
"And the gates of the city shall be after the names of the tribes of Israel: three gates northward; one gate of Reuben, one gate of Judah, one gate of Levi."
Cross References (ranked by relevance)
Revelation 21:21
And the twelve gates were twelve pearls: every several gate was of one pearl: and the street of the city was pure gold, as it were transparent glass.
Isaiah 60:11
Therefore thy gates shall be open continually; they shall not be shut day nor night; that men may bring unto thee the forces of the Gentiles, and that their kings may be brought.
Isaiah 54:12
And I will make thy windows of agates, and thy gates of carbuncles, and all thy borders of pleasant stones.
Revelation 21:25
And the gates of it shall not be shut at all by day: for there shall be no night there.