Arcana Coelestia #6376
6376. 'And the foal of his she-ass to the outstanding vine' means truth from the rational for the internal Church. This is clear from the meaning of 'the vine' as the spiritual Church, dealt with in 1069, 5113, so that 'the outstanding vine' means the internal Church (for the internal part of the Church is more outstanding than the external part of it); and from the meaning of 'the foal of a she-ass' as rational truth, dealt with in 2781. The external part of the Church is distinct and separate from the internal, in that it is located in the natural, thus in the external man, whereas the internal part is located in the rational, thus in the internal man. Members of the external Church are governed by truth, those of the internal Church by good. The former are motivated not so much by the good of charity as they are by the truth of faith, whereas the latter are motivated by the good of charity and from this by the truth of faith. Members of the internal Church are the ones meant by 'the outstanding vine', but members of the external Church are the ones meant by 'the vine'.
Arcana Coelestia #6238
6238. 'As Reuben and Simeon will they be mine' means that they will be truth and the good of truth. This is clear from the representation of 'Reuben' as faith in the understanding, and the truth of doctrine by means of which one is able to arrive at the good of life, dealt with in 3861, 3866, thus in general truth that belongs to the understanding; and from the representation of 'Simeon' as faith in the will, consequently truth realized in action, which is the good of faith or the good of truth, dealt with in 3869-3872, 4497, 4502, 4503, 5626, 5630, thus in general good which belongs to the new will. The things that Ephraim and Manasseh represent are clearly similar to all this.
[2] But since Reuben profaned what he represented, 4601, and Simeon polluted what he represented, 4497, 4501, 4507, on account of which they were cursed, see verses 3-7 of the next chapter, they lost their birthright and Joseph's sons Ephraim and Manasseh were acknowledged as the firstborn in place of them, 1 Chronicles 5:1. Nevertheless what Reuben and Simeon represented remained with them, for it makes no difference what the character of the person who serves to represent something is like, 665, l097 (end), 4281. That is to say, the representation of faith in the understanding remained with Reuben, and the representation of faith in the will with Simeon. But what resided with Ephraim was the representation of the Church's understanding, and what resided with Manasseh was the representation of the Church's will.