³ This is how we know that we know him: if we keep his commandments. ⁴ One who says, “I know him,” and doesn’t keep his commandments, is a liar, and the truth isn’t in him. ⁵ But God’s love has most certainly been perfected in whoever keeps his word. This is how we know that we are in him: ⁶ he who says he remains in him ought himself also to walk just like he walked.