Colin was born and raised in the DC area. His vision for DBC is that we strive together for the faith of the Gospel, as Paul mentioned to the Philippians.  Striving together means that we are fully engaged in serving the Lord and being used by Him. What is it we're striving for? The faith of the Gospel! The Gospel impacts every aspect of our lives, and we are to take the Good News of Jesus Christ to those around us: our families, our neighborhoods, and our world. We are not to do this by ourselves, but as a unified body of believers. We are a church family; we need to encourage, support, challenge, and comfort one another in all that we do.

Colin met his wife, Christine, while attending George Mason University, where he earned his B.A. in Russian Studies and Masters Degree in Education. Colin also earned his Doctor in Ministry degree at Liberty Theological Seminary, where he previously earned his Master of Arts in Religion Degree and Master of Divinity Degree. Colin has previously served as a Children's Pastor, missionary school teacher in Russia, and on the staff of Central Union Mission. The Seager's six children are Ashleigh, Katie, Michael, Alyssa, Matthew, and Kaylee. Colin always loves a good game of hoops or ping-pong, loves to grill and will always be a Skins fan! 

Tim Ripley, Worship Arts Director

Tim grew up in Grand Rapids, Michigan. He came to have a personal relationship with Christ at the age of 5. He began his formal music studies on the piano at the age of 8. Soon after, he began playing in area churches and nursing homes.

During his high school years, he performed with various groups, singing and playing the keyboards. After graduation, he continued to advance his musical career through writing and performing contemporary Christian music in a variety of venues. He has written for PBS, Twentieth Century Fox/America's Most Wanted, scored commercials and political campaign ads, and also done session work as an audio engineer/vocalist/producer.  He has even written music for daytime dramas (read - 'soap operas'), but he will probably deny that if you ask him! He also engineers all the Body and Soul (TM) Christian Aerobic workout recordings.

In 1985, Tim and his wonderful wife, Deborah, moved to Maryland. Over time, Tim's work became more and more driven by service in the local church. In January of 1997, Tim accepted the position of Worship Arts Director at Derwood Bible Church. His broad base of experience and talent allows him tremendous freedom to incorporate many styles of music into our worship. He loves both current songs and hymns so he uses both traditional and contemporary forms to give worship energy and substance.

Tim loves to fix things - especially anything with a motor! He writes and records music in his home studio and records all of the radio spots for the church. For you tech-heads, he uses Pro Tools and Digital Performer on a Mac computer. He's an avid Nascar fan and loves to talk about it with anyone who will listen! He also loves to build things. Right now, he's working on a 1969 Toyota Corona.

Click here for an audio sample of DBC's worship team.


Mike Speer, Pastor of Student Ministries

Mike was a junior in high school and just moved to Maryland when he was invited on a youth group trip to Kings Dominion. He initially questioned whether anyone his age really believed in God, but it was his friends' authentic faith that led Mike to search for truth. In 1990 Mike responded to the gospel and accepted Jesus' gift of eternal life at a Christian rock concert when he was 17 years old.  He continued to grow in his faith through personal time with the Lord, discussing theology with his friends and mentors, and attending church with his family.


Mike graduated from the University of Maryland and met his wife, Anna, at a singles Bible study here at DBC. He enjoys studying and teaching God's Word, playing music, and investing his life in kids, students, and other leaders with the same passion.

Mike earned his Master of Divinity Degree from Liberty Theological Seminary in Dec. 2014. Mike and Anna are proud adoptive parents to their two children, Jake and Emily.



Jason Purdy, Pastor of Community Development

Jason grew up in between Georgia and North Carolina. Jesus saved him at a Disciple Now youth event when he was thirteen. He continued to grow in his faith through high school and then went to Liberty University, where he pursued a call to gospel ministry through studies in Bible and pastoral leadership. He also met his wonderful wife, Robin, who grew up in Gaithersburg, MD and was a member of DBC since junior high. Jason and Robin have four active children: Elijah, Mackenzie, Addison and Isaiah.

Jason received his Master of Divinity from Southeastern Baptist Theological Seminary. He is passionate about Christ's gospel and the church for which he died. He has the opportunity to develop community in the church through domestic outreach, visitor relations, and small groups as an associate pastor. The Purdy's previously served as missionaries to India, and Jason has served in youth and small group ministries. Jason loves playing with his kids, serving with his wife, gospel community, reading, and San Antonio Spurs basketball.

Sandy Sauerwein, Director of Chieftain

Sandy Sauerwein greatly appreciates being able to suppport families who are called by the Lord to homeschool their children. In 2000 the church asked her to begin Chieftain Institute, a program for Christian homeschoolers in our area. She is also the director of Chieftain Christian Academy, our church's umbrella program for grades K-8. Sandy loves to teach whether it is 4th graders in our Sunday School, High School Algebra students, or adults. Her graduate and undergraduate degrees are in education. She became a Christian when she was 15 and met her husband, Ken, at the church where she was saved. They have been married since 1981 and are blessed to be the parents of two adult daughters, Amy and Robin. She and her family enjoy serving in different ministries at DBC.  

Abigail Brown, Nursery Director

One night while attending a local Pioneer Girl program at the age of seven, Abigail's group leader presented a simple but profound biblical message about Jesus Christ's gift of eternal salvation. It was that night that her relationship with Christ began. Abigail grew up locally and has attended Derwood Bible Church since her childhood. During her freshman year of college, she met David, whom she eventually married in the winter of 2008. After college, she went on to complete a graduate degree in education and currently works as a stay-at-home mom with her three young children, Caleb, Jeni and Sophia. Abigail has been active in various children's programs for many years. She is currently involved with the MOPS ministry and is serving as DBC's Nursery Director.

Kimberly Guy, Office Manager

Kimberly was raised all over the world as the daughter of an Army Sgt. She moved to Maryland when she was 16 years old and met her husband at the church she began attending. She has been married to John Guy since 1987 (and is still very much in love with him!); they have three amazing adult children ~ Joseph,  Jennifer and Kevin ~

Kimberly came to know Jesus when she was 9 years old at an AWANA club and has been passionate about Him ever since. She and her husband have hosted a care group in their home for many years and Kimberly has taught bible study since 1999 to the women of DBC and has a tremendous love for these women and the Word of God. 

Before she was a stay at home mom (and for some part time jobs in between then and now) she has had the privilege of managing offices for doctors and several finance companies. She and her family have been invested in this body of believers for close to 20 years and she loves that she can integrate her love of DBC and the ministries that she is involved in with her love for administration!

Outside of work she loves to read, work out, take long walks with her dogs, go the beach and be surrounded by her family.

Deborah Ripley, Ministry Support Coordinator

Deborah grew up in Michigan and came to know the Lord during her first month in college.  Shortly after she married Tim, (now DBC's Worship Arts Director) they moved to Maryland. Tim & Deborah have three children and have been attending DBC for 20 years.