Arcana Coelestia #4607
4607. The sons of Rachel, Joseph and Benjamin. That these signify interior goods and truths, is evident from the representation of Rachel, as being the affection of interior truth (see n. 3758, 3782, 3793, 3819), hence the “sons of Rachel” are interior goods and truths. The essential things of these are represented by Joseph and Benjamin; by Joseph in the supreme sense the Divine spiritual, in the internal sense the spiritual kingdom, and in the external sense its good (see n. 3969); and by Benjamin the Divine spiritual of the celestial (n. 3969, 4592). These essential things are within interior goods and truths.
Genesis 35:16-18
16
They traveled from Bethel. There was still some distance to come to Ephrath, and Rachel travailed. She had hard labor.
17
When she was in hard labor, the midwife said to her, "Don't be afraid, for now you will have another son."
18
It happened, as her soul was departing (for she died), that she named him Benoni, but his father named him Benjamin.