Proverbs 20:17 in the World English Bible
Fraudulent food is sweet to a man, but afterwards his mouth is filled with gravel.
Context
16 Take his garment that is surety for a stranger: and take a pledge of him for a strange woman.
17 Bread of deceit is sweet to a man; but afterwards his mouth shall be filled with gravel.
18 Every purpose is established by counsel: and with good advice make war.