7781. And every firstborn of beast. That this signifies the adulterated goods of faith, is evident from the signification of “firstborn,” as being faith; and from the signification of “beast,” as being the affections of good, and in the opposite sense the affections of evil (see n. 45, 46, 142, 143, 246, 714, 715, 719, 776, 2179, 2180, 3519, 5198). That “beasts” have this signification is from the representatives in the other life (n. 3218). Therefore also such things were signified by them in sacrifices (n. 2180, 2805, 2807, 2830, 3519). As “beasts” had this signification, therefore by “the firstborn of beast” is signified the good of truth, in this case adulterated, because belonging to the Egyptians, who perverted all truths and goods by applications to evil uses.

3218. When the angels are in affections, and are at the same time discoursing about them, then in the lower sphere among spirits such things fall into representative species of animals. When the discourse is about good affections, there are presented beautiful, tame, and useful animals, such as were used in sacrifice in the representative Divine worship in the Jewish Church-as lambs, sheep, kids, she-goats, rams, he-goats, calves, bullocks, oxen; and then whatever appears upon the animal presents some image of their thought, which it is given to upright and well-disposed spirits to perceive. This shows what was signified by the animals that were employed in the rites of the Jewish Church; and what by the same when mentioned in the Word; namely, affections (n. 1823, 2179, 2180). But the discourse of the angels about evil affections is represented by beasts that are repulsive, fierce, and useless, such as tigers, bears, wolves, scorpions, serpents, mice, and the like; and these affections are also signified by the same beasts in the Word.