Rex is a retired pastor-teacher-counselor. He placed his faith in Jesus Christ when he was 8 years old. He trained at Philadelphia College of Bible in Bible Christian Education. Together with his Wife Donna, they have served the Lord in youth ministry, Christian school teaching and administration, and pastoral ministry for over 50 years. He began writing expositional commentaries and devotionals based on his preaching-teaching notes and new research in the Scriptures in 2017.