It was foretold in the _Apocalypse_ (XXI, XXII) that at the end of the
former Church a New Church was to be instituted, in which this would
be the chief teaching: that God is One in Person as well as in
Essence, in Whom is the Trinity, and that that God is the Lord. This
Church is what is there meant by the New Jerusalem, into which only he
can enter who acknowledges the Lord alone as God of Heaven and earth.
--_Divine Providence, n._ 263
The descent of the New Jerusalem cannot take place in a moment, but
becomes a fact as the falsities of the former Church are removed. For
what is new cannot enter where falsities have previously been
engendered, unless these are eradicated; which will take place with
the clergy, and so with the laity.
--_True Christian Religion, n._ 784