3772. 'And water the flock' means that the doctrine was drawn from it. This is clear from the meaning of 'watering', or giving a drink, as giving instruction, dealt with in 3069, 3768, and from the meaning of 'the flock' as people who are governed by the goods and truths of faith, dealt with in 343, 3767. Thus 'watering it' means giving instruction from the Word, and therefore from doctrine.

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'.