1 John 2:4
He that saith, I know him, and keepeth not his commandments, is a liar, and in him the truth is not.
1 John 1:8
If we say that we have no sin, we deceive ourselves, and the truth is not in us.
1 John 1:6
If we say that we have communion with him, and walk in darkness, we lie, and practise not the truth:
Titus 1:16
They profess to know God; but in works deny him, being abominable and disobedient, and unto every good work reprobate.
James 2:14-16
What is the advantage, my brethren, if a man profess to have faith, but hath not works; can faith save him?
1 John 1:10
If we say that we have not sinned, we make him a liar, and his word is not in us.
1 John 2:9
He who saith, that he is in the light, yet hateth his brother, is in darkness even until now.
1 John 4:20
If any person say, I love God, yet hateth his brother, he is a liar; for he who loveth not his brother whom he hath seen, how can he love the God whom he hath not seen?