Office Manager 

Olene Mendoza

Olene is a single mother of four children: a daughter and three sons, the eldest of whom are twins. Olene currently has the privilege to raise her granddaughter, who prides her young self in keeping "Nanna on her toes!" As the Office Manager, Olene is responsible for: answering the phone, ordering supplies, bookkeeping, facility scheduling, and making sure Grace Bible is running smoothly. Olene finds passion in being a light to others who are in a dark place. Finding the courage daily to uplift others and showing them how God has been a light in her life. Olene finds great passion and fulfillment cooking for others and her family.

Psalm 42:5: Why am I discouraged? Why is my heart so sad? I will put my hope in God! I will praise him again, my Savior and my God!

Contact Olene at

Director of Worship Arts 

Julie (Wingfield) Zierenberg

Julie  Wingfield












Julie has been GBC's Director of Worship Arts since December of 2011. She has been leading worship for over 20 years in a variety of church settings as well as women's ministries events. In addition, she and her husband (Pastor Dave) have worked as professional musicians for many years, playing at bluegrass festivals, fairs and other venues throughout the southwest. From 2005 to 2012 Julie taught the String Orchestra and Guitar programs at the Academy for Academic Excellence (AAE), part of the acclaimed Lewis Center for Educational Research in Apple Valley, CA.

Contact Julie at




Directors of Youth Ministries

Jana & Randy Jordan













Jana and Randy Jordan, are our Youth leaders here at Grace Bible Church. Together they share two sweet and silly boys, Ethan and Brisen, and a bold and beautiful daughter named Arrowyn. Jana graduated from Azusa Pacific University and travelled to India to work with victims of human trafficking and disabled children. Randy attended Pepperdine University and after graduation he earned his teaching credential and began teaching junior high for the Victor Valley High School District. The Jordan's have a common passion for investing in the lives of young people. They enjoy going on every kind of outdoor adventure with friends and family.

Psalm 18:28: "My God turns my darkness into light."


Contact the Jordans at










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