In Leviticus 11:7 and Matthew 7:6, this signifies filthy loves of those in the hells of adulterers. (Apocalypse Explained 1044[4]) Swine signify people who love only worldly riches. (Apocalypse Revealed 727)

In Isaiah 65:4, this signifies appropriation of infernal evils. (Apocalypse Explained 659[2]) 'Swine' or 'hogs' correspond to the life of greed and its delight.

(References: Arcana Coelestia 1742)

4017. 'In the troughs of water where the flocks came to drink' means affections for truth. This is clear from the meaning of 'water' as cognitions and facts, which are the truths of the natural, dealt with in 28, 2702, 3058; from the meaning of 'troughs' or water-holders, which, since they are containers of water, in the internal sense mean the goods that go with truth, for these goods are the holders of truth, dealt with in 3095- and from the meaning of 'coming to drink' as the affection for truth. The reason why 'coming to drink' means the affection for truth is that it implies thirst, and 'thirst' in the Word means appetite and desire, and so the affection for knowing and taking in truth. It has this meaning because 'water' means truth in general. 'Hunger' however means appetite and desire, and so the affection for assimilating good. It does so because 'bread', which is used to denote food in general, 2165, means good. From this it is evident that these words mean affections for truth.