Proverbs 23:2

And put a knife to thy throat, if thou be a man given to appetite.

Cross-reference

Matthew 18:8 commands cutting off a hand that causes sin — a radical self-discipline parallel to Proverbs 23:2's 'put a knife to your throat' for gluttony.

Matthew 18:9 similarly urges gouging out an eye if it causes sin — mirroring the drastic self-control over appetite in Proverbs 23:2.

1 Corinthians 9:27 describes Paul disciplining his body to avoid disqualification — directly paralleling Proverbs 23:2's extreme control over gluttony.

Philippians 3:19 condemns those whose god is their stomach — the opposite of the self-control Proverbs 23:2 demands.