Hogs
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)
Apocalypse Revealed #495
495. And if anyone wants to do them injury, he must be killed in that way. This symbolically means that anyone who condemns the two essential elements is likewise condemned.
To do injury here means, symbolically, to condemn, because it is followed by the statement that the person must be killed, and in the Word to be killed means, symbolically, to be killed spiritually, which is to be condemned. For the Lord says, "With what judgment you judge, you will be judged." (Matthew 7:1-2)