5506. To Jacob their father' means the good of natural truth. This is clear from the representation of 'Jacob' as the good of natural truth, dealt with in 3659, 3669, 3677, 3775, 4234, 4273, 4538, and also from the meaning of 'father' as good, 3703. 'Coming' to this good is being reformed thus far. Afterwards, as the intermediary represented by 'Benjamin' appeared on the scene, that good enabled the joining to the internal represented by 'Joseph' to be effected.