Children’s Ministries

It is our desire that your child learn to worship a real and loving God.  Through exciting worship, powerful programs, puppets, games, and excellent lessons OAG kids are taught the Word of God! Our Children’s programs cover multiple ages from babies in the nursery to Kidz Church (for 1st through 5th grade) on Sunday Mornings.

Wednesday night’s focus is Royal Rangers for boys  and Mpact Girls. Through these interactive ministries your child can grow through hands on experiences and biblical teaching. For children as young as 3 years of age.
For more info about Royal Rangers or Mpact contact:

Each child at OAG has the opportunity to enjoy Sunday morning and Wednesday night kids programs! 
For more info contact: Tammy Andreasen


OA Students

Our goal is to encounter the presence of God, build relationships with each other, and impact our world everyday!  Students experience a special service every Wednesday night at 7pm in the youth building! Outside of our services we have events and activities catered to our students- Summer Camp, Momentum, concerts, parties,  theme park trips, and much more! OA Student Ministries is open to students 7th through 12th grade.
or check us out at

Young Adults

Join a group of young adults every Sunday morning at 9am for a study and discussion on practical aspects of hearing God’s voice and pursuing your dreams!
We also enjoy breakout events (movie and game nights, bowling, ski-trips, etc.) every month!

Sunday School

Sunday School is a teaching ministry offering small group classes for all ages. The purpose of Sunday school is to educate each individual to enhance their spiritual growth so that they can live more fruitful and productive lives. These classes offer an opportunity for discussion, questions, and answers based on the Word of God. Classes are held each Sunday morning at 9am for all ages.
For more info contact: Church Office


Worship & Creative Arts

The Worship & Creative Arts department includes Worship Team members, the OAG Sanctuary Choir, Media Team and a variety of participants for special services during the Easter and Christmas season.  This ministry is always seeking out new volunteers to minister during our services. We encourage all of our participants to attend services and get involved in a variety of ministries! 


Men’s & Women’s Ministries

We all need an outlet in which we can enjoy fellowship. At OAG, we are dedicated to the needs of our men and women. We aim to learn from each other, share personal struggles, concerns, and prayer needs as we grow closer to Jesus. Our Men’s Ministry and Women’s Ministry groups meet on a monthly basis, whether it is for a Bible study, breakfast or for a movie night!
For more info contact: Kevin Hill (Men’s Ministry)
                              or Kim Crowley (Women’s Ministry)

Senior Ministries
Senior adults are an important part of the ministry and
personality of O’Fallon Assembly. It is our desire to see the senior adults still active in and enjoying their church. We meet each week for a bible study on Tuesday mornings, plan and take trips, serve in the community and in various ministries throughout the church.
For more info contact: Patty Bruce 

World Missions

O’Fallon Assembly is thrilled to be part of the spread of God’s love around the world!  We are active in supporting over 60 missionaries and ministries with our money and with our prayers.  We have sent teams of adults and youth overseas, as well as participating in home missions! We encourage all of our OAG members to respond to God’s call to spread the gospel, whether it means they give through a faith promise, serve on a missions trip or minister in our own community.


First Impressions

First Impressions is all about creating an atmosphere of warmth, friendliness and a loving welcome so that people want to come back to learn more about Jesus Christ.  If you would like to be a part of this new ministry, please see Team Leader Kathy Polinsky.
For more info contact: Kathy Polinsky

Where Can I Serve?

The most important value of OAG is our mission of “LOVING God passionately, LIVING life abundantly and LEADING people purposefully”. Church members are involved in a variety of ministries from things such as serving in the nursery, to greeting and ushering, working on the media team, teaching a Bible class, to singing in the Sanctuary Choir. There is a place for you! We would love to help you get connected! Ready for the next step?
Please fill out the Involvement form in this link!