Ver. 43-48. See Poole on "Matthew 5:29". See Poole on "Matthew 5:30", where the same things occur. Matthew only mentions the hand and the eye. All have the same significance, viz. that it is better to deny ourselves in some particular satisfaction, than to hazard eternal salvation for the gratifying the appetite in it.
Related Commentaries of Mark 9:43
Mark 9:43
43 And if thy hand offendc thee, cut it off: it is better for thee to enter into life maimed, than having two hands to go into hell, into the fire that never shall be quenched: