KJV : When I thought <02803> (8762) to know <03045> (8800) this, it [was] too painful <05999> for me <05869>; {too...: Heb. labour in mine eyes}NASB : When I pondered to understand this, It was troublesome in my sightNASB# : When I pondered<2803> to understand<3045> this<384>, It was troublesome<5999> in my sight<5869>