NET
4 The one who says “I have come to know God” and yet does not keep his commandments is a liar, and the truth is not in such a person.
Darby
4 He that says, I know him, and does not keep his commandments, is a liar, and the truth is not in him;
KJV
4 He that saith, I know him, and keepeth not his commandments, is a liar, and the truth is not in him.