[3] Three Mennonite Brethren churches - South Abbotsford, Clearbrook, and Matsqui - joined to support Bethel, which had 34 students that year.

The introduction of a high school program led to a temporary relocation of Bethel to a private site in Clearbrook in 1945.

In 1946, the Mennonite Educational Institute moved its high school to a new building in Clearbrook, and Bethel returned to its South Abbotsford campus.

Under the leadership of J. F. Redekop, principal from 1944, the school gained the additional support of East Aldergrove, McCallum Road, and Arnold M.B.

In 1955, the Bible School Society (consisting of the six supporting churches) purchased land in Clearbrook and erected what is now the old wing of the classroom building.

In 1960, the British Columbia Conference of Mennonite Brethren Churches accepted the responsibility for the operation of MBBI.

N. W. Bahnman announced the opening of a Bible school in Coghlan (now Aldergrove) on the premises of the Bethel Mennonite Church.

Twenty-two people enrolled in the tuition free classes at Bethel, which were taught by three instructors without pay.

[6] A society was formed which operated the school for three years (1941–1944), until the Conference of Mennonites in BC assumed full responsibility for the institute.

When attendance diminished in the 1960s and the facilities needed improvement, a special Bethel Bible Institute Study Conference on the future of the school was held in May 1967.

in 1968–70, the Conference of Mennonites decided to close Bethel and merge with MBBI in nearby Clearbrook.

The school has both men's and women's Volleyball and Basketball which compete in the Pacific Western Athletic Association.