Proverbs 9:17-18

Stolen waters (pleasures) are sweet [because they are forbidden]; and bread eaten in secret is pleasant. [Prov. 20:17.] But he knows not that the shades of the dead are there [specters haunting the scene of past transgressions], and that her invited guests are [already sunk] in the depths of Sheol (the lower world, Hades, the place of the dead).