Apostle David Jelmark is a seasoned teacher of the Word, spiritual father, and author dedicated to equipping leaders and building lives across Nigeria and beyond. Ordained as an Apostle in 1997 following his training at Word of Faith Bible College, he brings decades of pastoral wisdom, prophetic clarity, and leadership insight to his writing. He serves as the Chairman of the Pentecostal Fellowship of Nigeria (Opebi–Allen Zone, Lagos State) and is the convener of The Good Shepherd Conference and Makarios Conference. He holds a degree in Electrical and Electronics Engineering from Obafemi Awolowo University, Ile-Ife.