Matthew 15:17

"Do not you see that whatever goes into the mouth passes into the stomach, and is afterwards expelled?

1 Corinthians 6:13

Food exists for the stomach, and the stomach for food; but God will put an end to both the one and the other. The body, however, exists, not for immorality, but for the Lord, and the Lord for the body;

Matthew 7:19-20

Every tree that fails to bear good fruit is cut down and thrown into the fire.

Luke 6:45

A good man, from the good stores of his heart, brings out what is good; while a bad man, from his bad stores, brings out what is bad. For what fills a man's heart will rise to his lips.

Colossians 2:21-22

To such ordinances as 'Do not handle, or taste, or touch'?

James 3:6

And the tongue is like a spark. Among the members of our body it proves itself a very world of mischief; it contaminates the whole body; it sets the wheels of life on fire, and is itself set on fire by the flames of the Pit.

Treasury of Scripture Knowledge

Summary

Do not ye yet understand, that whatsoever entereth in at the mouth goeth into the belly, and is cast out into the draught?

General references

Bible References

That

Matthew 7:19
Every tree that fails to bear good fruit is cut down and thrown into the fire.
Luke 6:45
A good man, from the good stores of his heart, brings out what is good; while a bad man, from his bad stores, brings out what is bad. For what fills a man's heart will rise to his lips.
1 Corinthians 6:13
Food exists for the stomach, and the stomach for food; but God will put an end to both the one and the other. The body, however, exists, not for immorality, but for the Lord, and the Lord for the body;
Colossians 2:21
To such ordinances as 'Do not handle, or taste, or touch'?
James 3:6
And the tongue is like a spark. Among the members of our body it proves itself a very world of mischief; it contaminates the whole body; it sets the wheels of life on fire, and is itself set on fire by the flames of the Pit.

General references

Mark 7:18
"What, do even you understand so little?" exclaimed Jesus. "Do not you see that there is nothing external to a man, which by going into a man, can 'defile' him,