Mark 9:47
KJV
And if thine eye offend thee, pluck it out: it is better for thee to enter into the kingdom of God with one eye, than having two eyes to be cast into hell fire:
NWT
And if your eye makes you stumble, throw it away. It is better for you to enter one-eyed into the Kingdom of God than to be thrown with two eyes into Ge·henʹna,
The omission of “fire” from Hell dilutes the impact of the word. The phrase “Hell fire” only appears three times in scripture: Matthew 5:22, Matthew 18:9, and Mark 9:7. Rendering the word as “Gehenna” in NWT does not make it easier to comprehend without consulting a concordance.
New World Translation of the Holy Scriptures © Watch Tower Bible and Tract Society of Pennsylvania.