45. In short, several wives and one man cannot become one flesh, that is, one mind, which is made up of the will and the understanding. The marriage of these two or - ¹ - makes marriage in its very existence; for all things in the universe have reference to the marriage of good and truth, and so to marriage, in order that they may be something and bring forth something. And marriage itself in its own form from its own essence is produced in man together with his mate and likewise in an angel.

Footnotes:

'The first resurrection,' mentioned in Revelation 20:5, 6, does not mean a first resurrection, but the essence and primary part of resurrection, which is salvation and eternal life. There is only one resurrection to life. A second does not happen, and is not mentioned anywhere in the Bible.

(References: Apocalypse Explained 6; Apocalypse Revealed 851; Revelation 20:5-6)