1 John 1:8; 1 John 2:4; 1 John 2:21; 1 John 3:19; 1 John 4:6
If we say that we have no sin, we deceive ourselves, and the truth is not in us.
He that saith , I know him, and keepeth not his commandments, is a liar, and the truth is not in him.
I have not written unto you because ye know not the truth, but because ye know it, and that no lie is of the truth.
And hereby we know that we are of the truth, and shall assure our hearts before him.
We are of God: he that knoweth God heareth us; he that is not of God heareth not us. Hereby know we the spirit of truth, and the spirit of error.