Deep Dive

Welcome to Deep Dive! Join Eric Geiger, Kyle Costello, Ines Franklin, and Steve Bang Lee as we dive into a weekly study of God’s Word to help us grow closer to God and deepen our faith.

Below, you will find three courses which all contain a virtual teaching component and a group discussion component. Rooted graduates are invited to take whatever course they’d like, in any order. Anyone who has not completed Rooted is invited to participate in “The Reason for God” course. We look forward to diving into God’s Word together!


Deep Dive: The Reason for God
In this eight-week study based on Timothy Keller’s The Reason for God, you’ll be equipped to engage in thoughtful conversations with others about difficult questions, develop a greater understanding of the good reasons for belief, and form a deeper, richer faith.

Deep Dive: The Story of God
In this eight-week study, you’ll discover there is no greater hero, no greater conflict,  no greater rescue, and no greater ending than what you’ll find in the unfolding story of God.

Deep Dive: The Image of God
In this six-week study, you’ll dive into the theological concept of the Imago Dei, the image of God reflected in every person on Earth, and learn how it should inform our posture and practices toward others and lead us into greater love for our neighbor.


We are no longer able to accommodate any more people on our wait list. Thank you for your interest in Deep Dive. We will be offering these classes again in the Winter and hope you can join us then!


Eric Geiger

Eric Geiger is the Senior Pastor of Mariners Church in Irvine, California. Before moving to Southern California, Eric served as senior vice-president for LifeWay Christian. Eric received his doctorate in leadership and church ministry from Southern Seminary. Eric has authored or co-authored several books including the best selling church leadership book, Simple Church. Eric is married to Kaye, and they have two daughters: Eden and Evie. During his free time, Eric enjoys dating his wife, taking his daughters to the beach, and playing basketball.

Kyle Costello

Kyle Costello is the lead pastor of Mariners Church Huntington Beach. Raised Mormon, Kyle began to follow Jesus roughly 20 years ago and has been passionately communicating the truth and love of Jesus as a pastor for the last 16 years. Prior to Mariners he served for nine years as Senior Pastor of a church he planted in Salt Lake City. He holds a Masters of Theology and Biblical Studies from Fuller Theological Seminary. Kyle is married to Joy and is the proud dad of two boys. He loves a well-brewed cup of coffee, surfing, and camping with his family.

Ines Franklin

Ines Franklin has been a Teaching Pastor at Mariners since 2012 and has authored numerous devotionals for the church. Having earned a Master of Divinity from Fuller Theological Seminary, she serves on several non-profit boards and is the founder of an online Christian discipleship ministry ( through which she shares her teaching and encouraging messages to a worldwide audience. Ines was born and raised in Puerto Rico, number six of seven children raised by a single mother living in poverty. Watching her mother overcome huge obstacles has fueled Ines’ dedication to a life of humility and care for the vulnerable. She and her husband Jim live in Irvine, CA and have a blended family of five married children and nine grandchildren.

Steve Bang Lee

Steve is the college pastor at Mariners Church Irvine. Prior to Mariners he was a High School Pastor at a Korean church for seven years and a College & Teaching Pastor at an Asian-American Church for over five years. Steve has also served as the Editorial Director, Conference Director, and Campus Pastor for various parachurch organizations, and has been a guest writer for The Gospel Coalition, LifeWay, and The SOLA Network. He holds an M.Div from Talbot School of Theology. Steve has been married to Angela for 11 years and has four kids. He enjoys spending time with his wife, reading, writing, and moments where his kids are napping.