Numbers 8:25

and from the age of fifty years they shall cease waiting upon the work, and shall serve no more,

But at fifty years old he is to retire from his service in the work and no longer serve.

And from the age of fifty years they shall withdraw from the duty of the service and serve no more.

And from the age of fifty years they shall cease waiting upon the service thereof , and shall serve no more:

But at the age of fifty years they shall retire from service in the work and not work anymore.

but at the age of fifty, they must retire from their regular service and work no longer.

and at the age of fifty years they must cease performing this work, and shall work no more.

and from the age of fifty years they shall retire from doing the work, and shall serve no more,