1. SUMMARIA EXPOSITIO DOCTRINAE NOVAE ECCLESIAE, QUAE PER NOVAM HIEROSOLYMAM IN APOCALYPSI INTELLIGITUR.

Postquam aliqua Opera et Opuscula de NOVA HIEROSOLYMA, per quam intelligitur NOVA Ecclesia a Domino instauranda, intra aliquot annos a me promulgata sunt, et postquam Apocalypsis revelata est, in animum induxi Doctrinam illius Ecclesiae in sua plenitudine, ita integram, in lucem edere: sed quia hoc aliquot annorum opus est, consultum duxi aliquam Sciagraphiam ejus emittere, propter causam, ut communis idea de illa Ecclesia et ejus Doctrina primum concipiatur; quoniam dum communia praecedunt, postea omnia et singula in sua latitudine exstantia in luce apparent, haec enim in communia intrant, sicut homogenea in sua receptacula. Attamen Breviarium hoc non subjicitur judiciis ventilandum, sed modo communicatur ad notitiam, quia hujus Contenta in ipso Opere plene demonstrabuntur. Sed praemittenda sunt Doctrinalia hodierna de Justificatione, propter sequentia de Discordantiis dogmatum Ecclesiae hodiernae et Ecclesiae novae.

813. "And His wife has made herself ready." This symbolically means that those who will belong to this church, namely, the New Jerusalem, are being gathered together, introduced to it, and instructed.

The wife symbolizes the Lord's New Church, namely, the New Jerusalem, as is clearly apparent from chapter 21 that comes later, where we find the following:

I... saw the holy city, New Jerusalem, coming down from God out of heaven, prepared as a bride adorned for her husband. (Revelation 21:2)

And in the same chapter:

(An angel) came to me..., saying, "Come, I will show you the bride, the Lamb's wife." And he... showed me the great city, the holy Jerusalem, descending out of heaven from God... (Revelation 21:9-10)

The wife's making herself ready means, symbolically, that those who will belong to that Lord's New Church are being gathered together, introduced to it, and instructed. And because her making herself ready has the symbolic meaning, therefore it follows next that as a wife she was "arrayed in fine linen, clean and bright," which symbolizes an introduction through instruction. Moreover, for the same reason a white horse is also afterward described, which symbolizes an understanding of the Word provided for them by the Lord.