Sin is not a list

Suppose that one could write a list of every sin. After all, the scriptures include various lists of things that the various writers consider sins. For example, Paul wrote:

19 Now the works of the flesh are manifest, which are these; Adultery, fornication, uncleanness, lasciviousness,
20 Idolatry, witchcraft, hatred, variance, emulations, wrath, strife, seditions, heresies,
21 Envyings, murders, drunkenness, revellings, and such like: of the which I tell you before, as I have also told you in time past, that they which do such things shall not inherit the kingdom of God. (Galatians 5)

Unfortunately, it isn’t possible to create an exhaustive list of sins.

...I cannot tell you all the things whereby ye may commit sin; for there are divers ways and means, even so many that I cannot number them. (Mosiah 4:29)

The impossibility of listing all sins is due to the fact that lists of sins are comprised of rules: specific prescribed behavior in specific situations. Unfortunately, specific situations are too numerous and varied to admit their complete and precise description as rules. A complete list of rules of optimal behavior would necessarily require the whole universe to contain them.¹

Even if it were possible for someone to name every sin, how do you suppose you would receive such a list? On the list would be many things that you do not believe are sins. What reason would you have to believe them? And where would they come from? Presently, there are many competing lists of alleged sins. Who decides which is right?