Possible Clues:

• Tulsa campus (Abbr.)
• Ned Flanders is among its fictional alumni: Abbr
• School with a 200-ft. Prayer Tower
• Oklahoma sch
• Christian sch. since 1963
• Religious sch. with the motto "Make no little plans here"
• Sch. founded by a Pentecostal preacher
• Sch. where chapel service attendance is mandatory
• The Golden Eagles of the Summit League, in brief
• Sch. in Tulsa, Okla