Deacons are the servant layer of leadership in the church. They are qualified men (1 Tim 3:8-13) serving the church to meet a specific task in order to free the elders to devote themselves to prayer and the ministry of the Word (Acts 6:4). The following are the deacons, the servant leadership, of Grace Bible Church.

Dave Bower

Benevolence & Church Finances

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Dave Bower is deacon serving over the areas of benevolence and church finances.

David Brittain

Next Generation Ministries (3 years - 5th Grade) & Smallgroup

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David Brittain has been a discple of Christ since November of 1986. Since moving to Tempe in 2013, David and his family have served in a variety of ministries at GBC and it is here in the ministry of Next Generation Ministries that his experience as a career teacher and coach is utilized as he labors alongside our fellow NGM servants. David enjoys serving others and growing as a disciple as well as helping to disciple others within the church body. He and his wife Erin both serve in our discipleship layer of ministries at GBC as smallgroup leaders and they are deeply involved and invested in their personal family life as well with 8 sons to shepherd by God’s grace.

Bobby Casillas

Equipping Hour

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Bobby was born and raised in Mesa, AZ.  The Lord graciously granted him repentance in 1999. In December of 2008 Bobby found his beloved home at GBC.  During that same year he met his treasured wife Allie, whom he married in 2010.  In 2014 he began to serve in the newly formed Equipping Hour ministry, which offers courses to the GBC body on various Biblical topics.  Bobby shares in the operational duties of Equipping Hour, a ministry dear to his heart because it is through the knowledge of the Lord that His saints grow in their ability to glorify Him.

Jeff Hantla


Jeff Hantla serves as a deacon of benevolence. His specific task is to assist and advise those with a need. He often helps individuals and families find means to meet physical needs as well as setting and meeting budgets; housing and financial difficulties are often discussed.  Working as a physical therapist for 35 years has prepared Jeff to help those with physical needs improve their strength and function as well as navigate the healthcare system. Drawing on his role providing for his family for 40 years, Jeff is skilled at encouraging husbands to find ways to care financially and physically for their family.
Jeff writes, “In going through life, we all should expect to experience times of suffering and trials, which are all designed by God to grow us in Christ. If this time of trial includes financial stress, I would love to meet with you and go over your budget with you to find out what needs changing or addressing and find ways the church can help you in this.”

Steve Kovach


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Steve and his wife Drew are natives to Arizona, they’ve been members of Grace Bible Church since 2012 and have four children.  Steve is a full time student at The Expositors Seminary and serves in the benevolence ministry as well as a deacon in the areas of smallgroup leadership and Student Ministries.

Vincent Lee

Next Generation Ministries (3 years - 5th Grade)

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Born and raised in California, Vincent attended UCLA and earned his bachelor’s degree in Microbiology, Immunology, and Molecular Genetics. Vincent was saved by God’s grace in high school, but truly experienced major spiritual growth while attending John Macarthur’s church, Grace Community Church while in college. Upon graduation he moved to Arizona to pursue a Doctorate of Pharmacy from Midwestern University. It was in Phoenix where he met his future wife Laura. He has been attending Grace Bible Church since 2014 and has been serving as a deacon in NGM since April 2019.

Jeremy Lehman

Logistics Coordination for Team PNG

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Jeremy and Lorie have been part of Grace Bible Church since 2010 and have been blessed with 3 children. Having served in Papua New Guinea for the last five years supporting the Canns, Dodds, Mitchells, Amelia Brink, and other missionaries, they returned to the USA in 2019. Jeremy currently serves as the Inter-Continental Business Manager for Finisterre Vision and is a full-time student at The Expositors Seminary. Along with administering the organization in the USA, he provides oversight of the Logistics Coordinator, who administers the organization in Papua New Guinea. Lorie and he also help train missionaries for living off-grid in remote jungle contexts.

Daniel Jackson

Audio & Video

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Daniel and his wife, Liz, have been members of Grace Bible Church since 2017, and God has blessed them with six children.  The Lord brought Daniel to faith in Jesus and repentance from sin in 1977 and Liz in 1975.  They were married in 1986 and have lived in the Ahwatukee area since 1995.  Daniel counts himself richly blessed to be entrusted at GBC with serving the Lord Jesus by making the preaching of His Word and the corporate worship in music of God the Father, Son, and Holy Spirit heard and seen.

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Announcements: 05-28-23

New to Grace Bible Church? If you are newer to GBC and would like to learn more about what the church believes and practices as well as interact with the elder leadership, please email ([email protected]) or call the office 480.968.6085. Looking for a Place to Serve or...

NOLA Update (March 12, 2023)

NOLA Update (March 12, 2023)

On Sunday, I updated our church about the New Orleans church plant. A summary of the update is outlined below. News Completed our branding (logo, design, landing page for website - registered as a corporation with the state of Louisiana opened a...