Matthew 5:29-30

But if your right eye makes you fall, tear it out and throw it away, for you might better lose one part of your body than have it all thrown into the pit!

Mark 9:43-49

If your hand makes you fall, cut it off. You might better enter upon life maimed, than go with both your hands to the pit, into the fire that cannot be put out.

Romans 8:13

for if you live under the control of the physical you will die, but if, by means of the Spirit, you put the body's doings to death, you will live.

Treasury of Scripture Knowledge

Summary

Though he spare it, and forsake it not; but keep it still within his mouth:

Bible References

Spare it

Matthew 5:29
But if your right eye makes you fall, tear it out and throw it away, for you might better lose one part of your body than have it all thrown into the pit!
Mark 9:43
If your hand makes you fall, cut it off. You might better enter upon life maimed, than go with both your hands to the pit, into the fire that cannot be put out.
Romans 8:13
for if you live under the control of the physical you will die, but if, by means of the Spirit, you put the body's doings to death, you will live.