Everyone who sins also commits lawlessness. Sin is lawlessness.
The import of the passage is, that the perverse life of those who indulge themselves in the liberty of sinning, is hateful to God, and cannot be borne with by him, because it is contrary to his Law. It does not hence follow, nor can it be hence inferred, that the faithful are iniquitous; because they desire to obey God, and abhor their own vices, and that in every instance; and they also form their own life, as much as in them lieth, according to the law. But when there is a deliberate purpose to sin, or a continued course in sin, then the law is transgressed. (77) 