Okla. Stat. tit. 25, § 1307
This chapter does not apply to a religious corporation, association, or society with respect to the employment of individuals of a particular religion to perform work connected with the carrying on by the corporation, association, or society of its religious activities.
Laws 1968, SB 367, c. 388, § 307, emerg. eff. May 17, 1968; Amended by Laws 1973, HB 1454, c. 195, § 2, emerg. eff. May 16, 1973.