2173. That 'Sarah' here is the Lord as regards truth is clear from the representation of 'Sarah' as intellectual truth allied to good, and here as rational truth, for the same reason as has just been stated in reference to 'Abraham'; for 'Sarah' represents truth, see what has been stated already in 1468, 1901, 2063, 2065. In the historical sections of the Word good and truth cannot be represented by anything other than a marriage, for they go together as two that are married. Indeed a Divine Marriage exists between celestial and spiritual things, or what amounts to the same, between the things of love and those of faith; or what still amounts to the same, between things of the will and those of the understanding. Those of the will are forms of good, those of the understanding forms of truth. Such a marriage exists in the Lord's kingdom in heaven, and such also exists in the Lord's kingdom on earth, which is the Church. Such a marriage exists in every individual, and in each part of him, indeed in the most individual parts of all. That which does not have its existence within such a marriage has no life. Indeed from this Divine Marriage such a marriage exists in the entire natural order and in each individual part of it - though it does so under a different shape and form - otherwise nothing would ever continue to exist there. Because such a marriage exists in each individual part, everything is described in the Prophets, especially in Isaiah, by a pair of expressions. The one expression has to do with that which is celestial or with good, the other with that which is spiritual or with truth, dealt with in 683, 793, 801. As regards the likeness of a marriage being present in every individual part, see 718, 747, 917, 1432. This explains why 'Abraham' represents the Lord's good, and 'Sarah' His truth.

747. 'Two and two' means complementary things. This may become clear to anyone from the fact that they are pairs. It is impossible for them to be pairs unless they are complementary to one another as truths and goods are, or evils and falsities. In fact all things contain the likeness of a marriage or a coupling together, as in the case of truths to goods, or of evils to falsities, because of the marriage of the understanding to the will, or of things of the understanding to those of the will. Indeed everything contains a marriage or coupling together of its own on which its very continuance depends.