This verse means that if there is something in a person's life that causes the person to sin or sway from the will of God, the person should let it go, even if it seems difficult. The difficulty or the pain in letting go of that sin is what is compared to gouging the eye out and throwing it away. It will be very painful to gouge out your eye. So it is better to let go of that sin which is so pleasing, suffer on earth for a short time and enjoy in heaven eternally than to stay in that sin, enjoy on earth for a short time and burn in hell eternally.
