He that saith, I know him, and keepeth not his commandments, is a liar, and the truth is not in him.
Berean Study Bible (BSB) - 1 John 2:4 >If anyone says, “I know Him,” but does not keep His commandments, he is a liar, and the truth is not in him.
Textus Receptus (TR) - 1 John 2:4 >Ὁ λέγων, Ἔγνωκα αὐτόν, καὶ τὰς ἐντολὰς αὐτοῦ μὴ τηρῶν, ψεύστης ἐστί, καὶ ἐν τούτῳ ἡ ἀλήθεια οὐκ ἔστιν·