Proverbs 9:17-18

Amplified Bible

¹⁷ 
“Stolen waters (pleasures) are sweet [because they are forbidden];
And bread eaten in secret is pleasant.”^(A)
18 
But he does not know that the spirits of the dead are there,
And that her guests are [already] in the depths of Sheol (the nether world, the place of the dead).