Proverbs 23:2
For you will put a knife to your throat
If you are a man of great appetite.
Matthew 18:8-9
1 Corinthians 9:27
But [like a boxer] I strictly discipline my body and make it my slave, so that, after I have preached [the gospel] to others, I myself will not somehow be disqualified [as unfit for service].
Philippians 3:19
whose fate is destruction, whose god is their belly [their worldly appetite, their sensuality, their vanity], and whose glory is in their shame—who focus their mind on earthly and temporal things.