Little children, let no one deceive you. He who practices righteousness is righteous, just as He is righteous. He who sins is of the devil, for the devil has sinned from the beginning. For this purpose the Son of God was manifested, that He might destroy the works of the devil.

This by extension should indicate, they who practice lawlessness, are also of the fallen one and his devious schemes, that he ebacts to mislead us.