342. That the second born of the Church is charity becomes clear from the things which the Church conceives and gives birth to, which are nothing other than faith and charity. The first of those born to Leah by Jacob had a similar meaning. Reuben meant faith; Simeon, faith expressed in action; Levi, charity, Genesis 29:32-34. This also was why the tribe of Levi assumed the function of the priesthood and became representative of the shepherd of the flock. Being the second born of the Church, charity is referred to as 'a brother. and is called 'Abel'.

7009. 'And it will happen, that he will be for you as a mouth' means the truth contained in doctrinal teachings, which also goes forth from the Lord in an indirect way. This is clear from the representation of Aaron, who 'will be for Moses as a mouth', as doctrinal teachings, dealt with in 6998; and from the meaning of 'being for Moses as a mouth' as the utterance or declaration of it, dealt with in 6987. The reason why the words of explanation are 'the truth contained in doctrinal teachings, which also goes forth from the Lord in an indirect way' is that the truth contained in doctrinal teachings, which 'Aaron' represents, is the kind of truth that can be heard and discerned by angels and by men. Such truth is what goes forth in an indirect way from the Lord. But the kind of truth that is represented by 'Moses' goes forth directly from the Lord, and cannot be heard or discerned by men, nor even by angels, see 6982, 6985, 6996, 7004.