Proverbs 9:18 – But he doesn’t know that the dead are there, That her guests are in the depths of Sheol. — World English.
The one lured by the deceptions of a whore is often ignorant of the fact that to enter into fornication with such a woman is figuratively like entering death, so that it is said that her guests are in the depths of sheol. Certainly fornication can lead to actual death, not only by veneral diseases, but also at the hand of a vengeful husband if one commits fornication with the wife of another.
If one should read into this verse that her guests are in a place of eternal torture, we need to note that the “guests” of the whore are in this condition in this life, not while actually dead; and since all sinners are reckoned as dead, figuratively speaking, such are in the depths of sheol. However, even more so for the whoremonger, as the depths of sheol signifies the depth to which they have gone towards imminently entering sheol, the oblivious realm of death. (Ecclesiastes 9:5,10) There is nothing in the verse about any one suffering for eternity.