A.T. Robertson Commentary Mark 9:44-46

"[where their worm dieth not, and the fire is not quenched.] And if thy foot cause thee to stumble, cut it off: it is good for thee to enter into life halt, rather than having thy two feet to be cast into hell. [where their worm dieth not, and the fire is not quenched.]" — Mark 9:44-46 (ASV)

The oldest and best manuscripts do not give these two verses. They came in from the Western and Syrian (Byzantine) classes. They are a mere repetition of verse 48. Hence we lose the numbering 44 and 46 in our verses which are not genuine.