Campbell was born and raised in South Africa into a Christian home, attending the Empangeni Baptist Church. Campbell came to faith in Christ at age 13 at a youth outreach meeting. After high school, he completed a 3-year diploma in Theology at the Bible Institute of South Africa in Cape Town. During his time in seminary, Campbell encountered the Doctrines of Grace and embraced the Reformed Faith. Campbell was called back to labor at his home church for 6 months before being conscripted to the South Africa Defense Force for 2 years. Campbell later worked in engineering sales in South Africa in various cities, including Durban, where Campbell pastored a small Baptist church bi-vocationally before he was relocated for work after 1 year. In 1985, Campbell married his high school sweetheart, Robyn, from his home church. The family moved to the USA in 2002 as a result of a sales job offer in New Jersey. They became members of the Reformed Baptist Church of Lafayette, NJ, where Campbell served as an elder for 3 years. They moved to Redondo Beach, CA in 2009 when Campbell joined the fish business. They became members of TRBC soon after arriving in CA. Campbell and Robyn have 2 adult daughters, Gillian and Sarah-Jane and one grand-daughter.