1 John 2:4-6

Revised Standard Version Catholic Edition

⁴ He who says “I know him” but disobeys his commandments is a liar, and the truth is not in him; ⁵ but whoever keeps his word, in him truly love for God is perfected. By this we may be sure that we are in him: ⁶ he who says he abides in him ought to walk in the same way in which he walked.