Who sit among the graves and spend their nights keeping secret vigil; who eat the flesh of pigs, and whose pots hold broth of impure meat
NIV
Who sit among the graves [trying to talk with the dead] and lodge among the secret places [or caves where familiar spirits were thought to dwell]; who eat swine's flesh, and the broth of abominable and loathsome things is in their vessels
AMP
Which remain among the graves, and lodge in the monuments, which eat swine's flesh, and broth of abominable things is in their vessels;
KJV