1 John 2:3-6 ESV

3 And by this we know that we have come to know him, if we 1keep his commandments.

References for 1 John 2:3

4 Whoever says "I know him" but does not keep his commandments 2is a liar, and 3the truth is not in him,

References for 1 John 2:4

5 but whoever 4keeps his word, in him truly 5the love of God is perfected. 6By this we may know that we are in him:

References for 1 John 2:5

6 whoever says he 7abides in him 8ought to walk in the same way in which he walked.

References for 1 John 2:6