1 John 2:4
The man who says 'I know Jesus,' but does not lay his commands to heart, is a liar, and the Truth has no place in him;
1 John 1:8
If we say that there is no sin in us, we are deceiving ourselves, and the Truth has no place in us.
1 John 1:6
If we say that we have communion with him, and yet continue to live in the Darkness, we lie, and are not living the Truth.
Titus 1:16
They profess to know God, but by their actions they disown him. They are degraded and self-willed; and, as far as anything good is concerned, they are utterly worthless.
James 2:14-16
My Brothers, what is the good of a man's saying that he has faith, if he does not prove it by actions? Can such faith save him?
1 John 1:10
If we say that we have not sinned, we are making God a liar, and his Message has no place in us.
1 John 2:9
He who says that he is in the Light, and yet hates his Brother, is in the Darkness even now.
1 John 4:20
If a man says 'I love God,' and yet hates his Brother, he is a liar; for the man who does not love his Brother, whom he has seen, cannot love God, whom he has not seen.