KJV : And from the age <01121> of fifty <02572> years <08141> they shall cease <07725> (8799) waiting <06635> upon the service <05656> [thereof], and shall serve <05647> (8799) no more: {cease...: Heb. return from the warfare of the service}NASB : "But at the age of fifty years they shall retire from service in the work and not work any more.NASB# : "But at the age<1121> of fifty<2572> years<8141> they shall retire<7725> from service<6635> in the work<5656> and not work<5647> any<5750> more<5750>.