1 John 1:10

1:10 If we say we have not sinned, we make him a liar and his word is not in us.

1 John 2:6

2:6 The one who says he resides in God ought himself to walk just as Jesus walked.

1 John 2:9

2:9 The one who says he is in the light but still hates his fellow Christian is still in the darkness.