In its early years the school served the local community by teaching elementary level courses, primarily focusing on the Bible and German language.

[3] In the spring of 1917 at the Oklahoma Mennonite Convention, leaders formulated a plan for a two-year Bible academy and high school to serve all local churches.

"[4] On March 27, 1918, through a special session of Oklahoma Convention,[5] the General Conference Mennonite Churches adopted the school as its field of service and the Meno Preparatory School became the Oklahoma Bible Academy, using the original buildings and an expanded curriculum.

The 1960s brought additional changes to the Oklahoma Bible Academy campus, including: a new industrial arts building, a music-lunchroom, and a gymnasium.

Campus expansion across the past two decades has included an auditorium with seating for over 400 people was built in 1995, a football field in 2001, the Advance Learning Center in 2003, and a track in 2006.