Revelation 21:13-15

Young's Literal Translation

¹³ at the east three gates, at the north three gates, at the south three gates, at the west three gates;

¹⁴ and the wall of the city had twelve foundations, and in them names of the twelve apostles of the Lamb.

¹⁵ And he who is speaking with me had a golden reed, that he may measure the city, and its gates, and its wall;