5907. 'And say to him, Thus said your son Joseph' means the perception this good had regarding the internal celestial. This is clear from the meaning of 'saying' in the historical narratives of the Word as perception, dealt with often; and from the representation of 'Joseph' as the internal celestial, dealt with in 5869, 5877. The reason for the meaning here - the perception that spiritual good, which is 'Israel', had regarding the internal celestial, which is 'Joseph' - is that the words 'said your son Joseph' describe in the internal sense an ability to perceive that is the product of an influx from the internal celestial into spiritual good.

5812. 'The boy cannot leave his father' means that that truth cannot be separated from spiritual good. This is clear from the meaning of 'leaving' as being separated; from the representation of 'Israel' as spiritual good from the natural, dealt with in 4286, 4598, 5807; and from the representation of 'Benjamin' as new truth, dealt with in 5804, 5806. This truth is called 'the boy' because it is born last; for this truth is not born until a person has become regenerate. At this point he receives newness of life through this new truth joined to good, which also is why this truth is meant by 'a child of his old age, the youngest one', 5804.