Okla. Stat. tit. 21, § 21-909: Persons observing other day as holy

It is a sufficient defense in proceedings for servile labor on

the first day of the week, to show that the accused uniformly keeps

another day of the week as holy time, and does not labor upon that

day, and that the labor complained of was done in such manner as not

to interrupt or disturb other persons in observing the first day of

the week as holy time.