The suit alleges the mandate violates the Oklahoma Constitution because it involves spending public money to support religion and favors one religion over another by requiring the use of a Protestant version of the Bible. It also alleges Walters and the state Board of Education don’t have the authority to require the use of instructional materials.

“As parents, my husband and I have sole responsibility to decide how and when our children learn about the Bible and religious teachings,” plaintiff Erika Wright, the founder of the Oklahoma Rural Schools Coalition and parent of two school-aged children, said in a statement. “It is not the role of any politician or public school official to intervene in these personal matters.”