Our pastoral staff and directors head up and oversee the teaching at Riverpark. Their goal is to make disciple-making disciples who make disciple-making disciples.

George Posthumus

Senior Pastor


Pastor George came to Riverpark in September of 1989. He and his wife Linda were married in 1974 and have three married children, Danielle, Jaime, and Chad, and twelve grandchildren. He is a graduate of Biola University (Bachelor of Music—1975) and a graduate of Talbot Theological Seminary (Master of Divinity—1979). Please note: Pastor George has a profound hearing loss. He is deaf in one ear and has very little hearing in the other. He uses unique hearing devices in order to carry on conversations, so please do not be surprised when he hands you a microphone when you talk to him.   

Eben Sherwood

Executive Administrator


Eben has been a member of Riverpark for 18 years, where he has served with Sunday Schools and the Communion Ministry. Recently, he has been serving as an elder on the elder's board, and is now serving as the Executive Administrator of Riverpark Bible. Eben and his wife Darcy have been married for 42 years and they have two adult sons, Steven and Adam. He is a graduate of Fresno State University (Bachelor of Arts- Sociology).

John Cox

Pastor of Adult Ministries


Pastor John joined the Riverpark staff in July, 2016. He and his wife Daisy have three children: Jane, Brooke and Jack. John is a graduate of University of Nevada (Bachelor of Arts—Journalism) and of The Master’s Seminary (Master of Divinity).

Mike Bohr

Worship & College Pastor


Pastor Mike joined the Riverpark staff in October, 2003. He and his wife Danielle were married in 1998 and have four children: Ethan, Ellie, Lucy, and Bryson. Mike is a graduate of  The Master’s College (Bachelor of Arts—Music and Communications) and a graduate of UCLA (Master of Music—Vocal Performance) and previously served in full-time music ministry in Southern California.

Joey Hull

Pastor of Student Ministries


Pastor Joey joined the Riverpark staff in May 2006. He oversees student ministries working directly with our High School students. Joey and his wife Sam were married in 2004 and have four children: Quinton, Grace, Maxwell, and Gavin. He is a graduate of Fresno Pacific University (Bachelor of Arts in Physical Education, Minor in Mathematics, Single Subject Teaching Credential) and of Western Seminary (Master of Divinity).

Karen Drew

Director of Women's Ministries


Karen has been on Riverpark staff since 1999 and has recently accepted the new responsibility of Director of Women’s Ministries. She and her husband Dwight were married in 1973 and have two grown daughters: Heather and Stacy, and four grandchildren.