While in Bible College, in 1979, they pioneered and planted a church in Chingola, Zambia, called Evangel Temple of the Assemblies of God, which they pastored until 1982 when they left for the USA to pursue a degree program of study. After their degree studies in Seattle, Washington, they returned to Zambia in 1984 to be the first Zambian President of TransAfrica Theological College, their Alma Mater, until 1987 when they left again for the USA to pursue post-graduate studies.
During their studies and stay in Los Angeles, which was over a fourteen (14) year period, and becoming Permanent Residents of the USA, the Lord gave them incredible opportunities in ministry. In 1991 Bishop George Mbulo was ordained by the Assemblies of God (USA) while serving as an Associate Pastor at North Hollywood First Assembly of God in Los Angeles, where he later became Executive Pastor until their return to Zambia in 2001. Rev. Beatrice Mbulo was a Pre-School Teacher from 1988 until 2001.