TSK · 1 John 2:4

They profess that they know God, but by their works they deny him, being abominable, disobedient, and unfit for any good work.

If we say that we have fellowship with him and walk in the darkness, we lie, and don't tell the truth.

If we say that we haven't sinned, we make him a liar, and his word is not in us.

If a man says, "I love God," and hates his brother, he is a liar; for he who doesn't love his brother whom he has seen, how can he love God whom he has not seen?