Leviticus 23:30-31

³⁰and I shall do away from his people that man that doeth anything of work in that day; (and I shall do away from his people anyone who doeth any work on that day;)

³¹therefore ye shall not do anything of work in that day; it shall be a lawful thing everlasting to you in all your generations and dwellings; (and so ye shall not do any work on that day; this shall be an everlasting law for you for all your generations, in all your dwelling places;)