Revelation 21:19

21:19 The foundations of the city’s wall are decorated ¹  with every kind of precious stone. The first foundation is jasper, the second sapphire, the third agate, ²  the fourth emerald,

Revelation 22:18

22:18 I testify to the one who hears the words of the prophecy contained in this book: If anyone adds to them, God will add to him the plagues described ³  in this book.

¹ tn The perfect participle here has been translated as an intensive (resultative) perfect.

² sn Agate (also called chalcedony) is a semiprecious stone usually milky or gray in color (L&N 2.32).

³ tn Grk “written.”