1 John 2:3-5

Douay-Rheims 1899 American Edition

³ And by this we know that we have known him, if we keep his commandments.

⁴ He who saith that he knoweth him, and keepeth not his commandments, is a liar, and the truth is not in him.

⁵ But he that keepeth his word, in him in very deed the charity of God is perfected; and by this we know that we are in him.