21:21; Heb 12:22]. And there it is said that the first gate is topaz, the second is emerald, the third is carbuncle, the fourth is sapphire, and so on in this manner each of the stones is distributed on each of the gates [cf. Rev 21:19–21]. If you understand the gates of Jerusalem and the gates of the daughter of Zion, where it is necessary for you to sing to God—for it says: “I will sing all your praises in the gates of the daughter of Zion” [Ps 9:14]—if you turn your mind to how someone is covered