Arcana Coelestia #3465
3465. And he called it Shibah. That this signifies the conjunction of confirmed truth by means of these things, is evident from the signification of “calling by name,” as being the quality (see n. 144, 145, 1754, 1896, 2009, 3421 and that “names” thus signify a thing or state, n. 1946, 2643, 3422), here therefore the conjunction of confirmed truth by means of doctrinal things; for in the original tongue “Shibah” means “an oath,” which signifies confirmation (n. 2842, 3375). That is called the conjunction of confirmed truth, when interior truths conjoin themselves with exterior truth, which are doctrinal things from the literal sense of the Word. That with such persons there is conjunction by means of the truths which are of faith, and not so much by means of the goods which are of charity, was stated above (n. 3463).
Arcana Coelestia #2630
2630. Isaac. That this signifies the Divine Rational, is evident from what has been said before concerning Abraham, Isaac, and Jacob (n. 1893, 2066, 2083), namely, that Abraham represents the supreme Divine, Isaac the Divine rational, and Jacob His Divine natural; as will also be seen hereafter, where Isaac is treated of.