1 John 2:4
He that saith, I know Him, and keepeth not his commandments, is a liar, and the truth is not in him.
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 do not practise the truth:
Titus 1:16
They profess to know God, but in works deny Him, being abominable and disobedient, and to every thing that is good void of understanding.
James 2:14-16
What is the advantage, my brethren, if any one say that he has faith, and he hath not works, can faith alone save him?
1 John 1:10
but if we say that we have not sinned, we make him a liar, and his word is not in us.
1 John 2:9
Now he that saith he is in the light, and hateth his brother, is still in darkness:
1 John 4:20
I love God, and hateth his brother, he is a liar: for how can he, that loveth not his brother, whom he hath seen, love God whom he hath not seen?