senior Pastor

Pastor Robb has been a part of Grace Church since childhood, where his father, Bob Yandian, served as pastor of Grace for 33 years. After graduating high school, he attended the University of Oklahoma, where he earned a degree in philosophy. One week after graduating college, in May 1996, he married Kellie, the love of his life. They have three children: Alex, Nathan, and Rachel. Pastor Robb began working at Grace in 1997 as a teacher at Grace Christian School. Since then, he has worked in maintenance, custodial, student ministry, missions, and outreach. He became Senior Pastor in May of 2013. Pastor Robb is passionate about reaching people far from God with the hope of the gospel of Jesus, and helping followers of Jesus walk more closely with Him.

Connect with Pastor Robb on Instagram or facebook

Read Kellie's hope


Associate Pastor

Pastor Geoff was saved and became a member at Grace Church in 1996. In October of the same year he married his lovely wife, Lisa. Together, they have three children: Asia, Elijah, and Zoe. Pastor Geoff is a graduate from the Virginia Military Institute, where he earned a degree in history and was commissioned as an officer in the U.S. Army. He left the Army as a Captain, and then worked in the pharmaceutical industry for fourteen years holding various positions in sales, training, and management. He has served at Grace Church in multiple areas including the nursery, serving communion, as a Small Groups leader, a board member, and in outreach.  He became the Associate Pastor of Grace Church in July 2014.  Pastor Geoff is excited about the vision of the church that God has given Pastor Robb, and is on fire for reaching people for Jesus Christ to the glory of God.

Connect with Pastor Geoff on Instagram 

Nick tiffee

Worship Director

Nick joined his first worship team in 2006 which is when the Lord began creating a deep passion in him for pure, intimate worship and leading others into an atmosphere where they can experience the power and presence of God. Nick loves cultivating musicians, singers, songwriters, and worship leaders on a natural and spiritual level. Nick attended Victory Bible College in Tulsa, Oklahoma and has served in both student and worship ministry within the local church.

As the Worship Director at Grace Church, Nick’s goal is to provide a place where the Lord can minister to each person that attends our services in a tangible, authentic, and impactful way.

One of Nick's many passions is missions and he has been on several trips ministering in the states and overseas, seeing God’s power displayed on every trip. His hobbies include hunting, fishing, and collecting every kind of video game. 

Nick married his dream girl, Charity, in 2018! Charity is actively involved in the Worship Team and is the worship leader in our student ministry.

connect with Nick on Instagram or facebook

Grant Jacobs

Student + Small groups pastor

Cassie Jacobs

Creative Director


Pastor Grant and Cassie believe there are only a couple important things in life. And while enjoying the outdoors and drinking black coffee is admirable, serving the local church tops the list. Married in 2007 and finding Grace Church that same year, they have served in multiple areas of the church.

Pastor Grant flew in corporate aviation for almost 10 years and was just getting the hang of it when he transitioned to full time ministry. He enjoys never going inside, reading and spending time with his wife and friends. Although Pastor Grant isn't known for his multitasking skills he oversees both the student ministry and Small Groups. His passion for [United] Students is that these formative years become the foundation for a lifelong love of Christ and His Church. And Pastor Grant believes life is more fun and fulfilling when done with others so you are cheating yourself if you aren't apart of a Small Group.

Cassie followed the typical creative career track by working as a barista in multiple locally owned coffee shops and coloring her hair before Katy Perry made it cool. She loves to laugh with people and when she has a few spare hours she'll nap or binge watch Gilmore Girls. If you’re not entirely sure what a Creative Director does, neither are we. However, Cassie’s primary responsibility is planning our services and she oversees our website and social media as well as our worship, production, visual design, events, and coffee shop teams. Cassie is passionate about creating environments where people feel at home, have fun, and find it easy to meet God.

Both Pastor Grant and Cassie were homeschooled so speak slowly and use small words around them.

Connect with Pastor Grant on Instagram

Connect with Cassie on Instagram

David Beltran

Facility Operations

Jeremy Butler

Facility Operations

Robin Branham

Finance Director

Geof Jackson

Ministries Director

Willie Knox

Facility Operations Director

  Tracie Pritchett   Nursery/Preschool Coordinator

Tracie Pritchett

Nursery/Preschool Coordinator

Brandon Reed

A/V Engineer

Mallori Reed

Visual Design

Barbi Sterrenberg

Pastoral Care/Administrative Assistant

Beth Wasson

Executive Administrative Assistant

Advisory Board

 Dirk + Roxann Hertzog

Dirk + Roxann Hertzog

 James + Randa Livingston

James + Randa Livingston

 Robert + Jackie Pryor

Robert + Jackie Pryor

 Larry + Carol Wilson

Larry + Carol Wilson

 Mark + Kristin Tedford

Mark + Kristin Tedford