To encompass, as in Genesis 19:4, signifies to be contrary, or to attack and assault with a hostile intention.

(参照: Arcana Coelestia 2347)

2347. 'They surrounded the house' means that they were set against the good that flows from charity. This is clear from the meaning of 'a house' as celestial good, which is nothing else than good flowing from love and charity, dealt with in 2048, 2233, and also from the meaning of 'surrounding' as being opposed to that good, that is, approaching it with hostile intent and attacking it.