He holds a PhD in Intercultural Studies from Trinity international University and an M.Div. from Nairobi International School of Theology (NIST) now ILU. David is an external reader for Masters theses for several Kenyan universities. He has supervised several Masters theses. David teaches in several areas including research for graduate students, missional theology and leadership. He has been part of the team that first developed and researched on mobile phone technology in learning and has presented a paper on the same to the Association of Professors of Mission in 2011. He has published several articles including ‘The Trendy Giant Wounds: Some Lessons from the Church in Africa.”