King James Version (KJV)
Take good heed therefore unto yourselves, that ye love the LORD your God. {yourselves: Heb. your souls}
Modern English
Take good heed therefore to yourselves, that you love Yahweh your God.
Hebrew
וְנִשְׁמַרְתֶּ֥ם מְאֹ֖ד לְנַפְשֹֽׁתֵיכֶ֑ם לְאַהֲבָ֖ה אֶת־יְהוָ֥ה אֱלֹהֵיכֶֽם׃
vnishmartem mʾod lnapshoteykem lʾahabah ʾet-yhvah ʾeloheykem