Charles Spurgeon Commentary 1 John 3:4

"Every one that doeth sin doeth also lawlessness; and sin is lawlessness." — 1 John 3:4 (ASV)

Whoever committeth sin transgresseth also the law: for sin is the transgression of the law.

And there will never be a better definition of sin than this.

However people may philosophically try to mar it, this simple statement will be better than any that they can give us: "Sin is the transgression of the law."

Whosoever committeth sin transgresseth also the law: for sin is the transgression of the law.

This is the best definition of sin that can be given; let none of us ever tolerate any other idea of sin but that it is "the transgression of the law."