John Gill Commentary Mark 9:45

"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." — Mark 9:45 (ASV)

And if your foot offend you, cut it off
Such who are that to men, as the foot is to the body, the support of them through whom they have their maintenance and subsistence; and yet these, if they are a means of causing them to stumble and tail, or of leading out of the ways of Christ, and off from him, their company is to be shunned and abstained from;

it is better for you to enter halt into life .
The Vulgate Latin version reads, "eternal life", which is undoubtedly intended by "life"; and so reads the Cambridge copy of Beza's; and the meaning is, that it is better to go alone without such company into heaven,

than having two feet to be cast into hell, into the fire that never
shall be quenched; (See Gill on Mark 9:44).