COS has a rich history of deep and meaningful adult education opportunities. Our Sunday Morning Adult Ed Sunday School has included times of story and testimony, theological discussions, lectures, and opportunities to share with each other about what God is doing in our lives.

GPS sessions have three stated goals:

  • Build community
  • Expand our view of God
  • Grapple with faith

We invite you to join us Sundays immediately following our 10 am worship services on the following dates:

2022 -2023
GPS Dates:
Info and Topics:
Upcoming GPS Sessions:
DecemberG.P.S. Schedule. GPS (God’s People Seeking) invites you to join us on Sundays in Fellowship Room 3 (next to the café) from 11:45am-12:30pm. GPS seeks to offer a space where friends and members of COS can build connections, expand their view of God, and grapple with faith.

“When COS Went to Prison”. 11:45-12:30, Sunday, Dec. 11 GPS
Prisoners in Christ team members Patrick Campbell, Lynette LaBine, Rich and Carol Rienstra, Arend VanderPols and Jennifer West will share some of the impacts that COS is having in and beyond prison. Consider chapter 5 of Nick Wolterstorff’s book “Beyond Imagining,” and hear about the monthly Monday restorative justice supper conversations that are drawing dozens of community members into the COS space of refuge, fellowship, and hope.

On December 18, COS members who have been involved in the Handlon prison book group, the Celebration Fellowship prison congregation, and the Calvin Prison Initiative will give testimony about how their involvement inside prison has affected their thinking and living on the outside.
Past GPS Sessions:
November 13November’s GPS theme is Jubilee and your Checkbook. These sessions will explore how Jubilee shaped Israel’s understanding of economics, and how this vision might impact our view of finances today. This Sunday (11/13), GPS welcomes Kurt Schaefer to discuss “The Economics of Jubilee” in Room 3.
November 20GPS on November 20 will include a presentation after the worship services titled “Estate Planning for Everyone”. In this session, COS member and attorney Mike Zahrt will talk about medical and legal/financial powers of attorney, how to create a will, and how to include COS as a part of your will or estate plan. No matter your age or life circumstance, if you don’t have a will or estate plan, or you think yours needs to be updated, you may find this session helpful. This presentation has been arranged by the COS Legacy Foundation Trustees and the Stewardship Committee.

October 9-30th

Refugia Faith with Debra Rienstra and Dave Koetje
To follow up on our wonderful observance of the Season of Creation at COS, join Dave Koetje and Debra Rienstra during the month of October to explore the concept of refugia. On October 9 and 16, Debra will present and lead a discussion on her book Refugia Faith: Seeking Hidden Shelters, Ordinary Wonders, and the Healing of the Earth. (No need to read the book ahead of time!) We’ll learn about seven transformations that can prepare us as people of faith to become healers and people of refugia in a crisis-stressed world.

On October 23 and 30, Dave will lead us on an informative walk around COS’s nature trail (23rd), where you can see how COS is engaged in ecosystem restoration. The next week (30th) we’ll learn about and discuss Dave’s research into “refugia gardening.” Join us for a thought-provoking and encouraging time of responding to our call to be earth healers.

COS Nature Trail Guide
Powerpoint Slides from October 30 – Refugia Gardening