David serves as Founder & President of TTI. He casts vision and gives direction to TTI as disciple makers impact the world for Christ. David is a former senior pastor and had success in growing three different churches in Maryland, Iowa, and Florida. He has been a trustee on the board of Luther Rice Seminary and has taught all over the world. David received a Master of Arts degree from Moody Bible Institute, a Master of Divinity from Luther Rice University and his Doctor of Ministry from Luther Rice University. David is married to his lovely wife, Loretta. They have three grown children and five grandchildren.

Pastor Jeff Shipman is the founding and lead pastor of Crossroads Church in Columbia, South Carolina. For more than two decades, Jeff has combined his entrepreneurial spirit and pastoral heart to plant thriving churches, unite congregations through The Cola Network, and serve as President of the Board for Christ Together, a national network mobilizing churches in over 100 cities. Shaped by both faith and adversity – including his son’s battle with Cystic Fibrosis and his own Parkinson’s diagnosis – Jeff lives out his life verse, “My grace is sufficient for you, for my power is made perfect in weakness” (2 Corinthians 12:9). He and his wife, Allison, have three children – Cade, Grayson, and Hope – and a lively Jack Russell named Finn.