Passage
And if thine eye cause thee to stumble, cast it out: it is good for thee to enter into the kingdom of God with one eye, rather than having two eyes to be cast into hell;
And if thine eye cause thee to stumble, cast it out: it is good for thee to enter into the kingdom of God with one eye, rather than having two eyes to be cast into hell;
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 9:46 [where their worm dieth not, and the fire is not quenched.]
Mark 9:47 And if thine eye cause thee to stumble, cast it out: it is good for thee to enter into the kingdom of God with one eye, rather than having two eyes to be cast into hell;
Mark 9:48 where their worm dieth not, and the fire is not quenched.
Mark 9:49 For every one shall be salted with fire.
The verse centers on "thine", "cause", "thee", "stumble", "cast", "good", and "enter". It is saying that the verse draws attention to "thine" and "cause", so its meaning should be read from those terms before moving to application.
The nearby context moves from verse 46's "where their worm dieth not and the..." into verse 48's "where their worm dieth not and the...", so "thine" and "cause" belong inside that flow. In Mark context, the local focus is Christ, faith, and discipleship.
A plain takeaway is to answer the verse's own emphasis on "thine" and "cause" with trust shaped by these words, not by a vague optimism outside the passage.