On the contrary, I find that line of reasoning to be problematic and the Catholic view to be scriptural, although I would characterize it as avoiding sins unto death. Jesus was, no doubt, deadly serious serious when he warned to pluck out an eye or cut off a limb rather than to grievously sin with them. He knew we love our own bodies so much only a lunatics would do so, but that we must very zealous to eschew such sins. 26For if we sin wilfully after that we have received the knowledge of the truth, there remaineth no more sacrifice for sins, 27But a certain fearful looking for of judgment and fiery indignation, which shall devour the adversaries. 28He that despised Moses' law died without mercy under two or three witnesses: 29Of how much sorer punishment, suppose ye, shall he be thought worthy, who hath trodden under foot the Son of God, and hath counted the blood of the covenant, wherewith he was sanctified, an unholy thing, and hath done despite unto the Spirit of grace? 30For we know him that hath said, Vengeance belongeth unto me, I will recompense, saith the Lord. And again, The Lord shall judge his people. 31It is a fearful thing to fall into the hands of the living God.
Indeed, I have thought about that eye-plucking business many times. Has your eye ever been an occasion of sin to you? If not, then I commend you for going your entire life without stumbling over something your eyes have seen. But if you have so stumbled, did you keep your eye? Or did you give it up? I’m not trying to be funny. I have a reason for asking this. If you will provide an answer, I’ll explain myself more clearly.
Peace,
SR