From Generation to Generation 

“We will not hide them from their children, telling to the generation
to come the praises of the Lord, and His strength and His wonderful works that He has done”
(Psalms 78:4 NKJV). 

On March 1, 1967, Melvyn and Barbara Kelderman moved to Trinidad and Tobago. That step of obedience began a family legacy that decades later led us—their son and daughter-in-law—to return as full-time missionaries serving with the School of Global Leadership (SGL). Looking back, we see God’s faithfulness from one generation to the next.  

Before being appointed as missionaries in 2024, we both taught secondary school while serving at Open Bible Church in Omaha, Nebraska. During those years, God gave us countless opportunities to grow in ministry and deepen our calling. Having served in cross-cultural ministry in several countries, we were grateful when He opened the door to join Global Missions full time. Today we serve with the School of Global Leadership, helping believers discover their role in God’s global mission and equipping those who are moving from called to sent. 

School of Global Leadership 

Since its beginning in 2010, SGL has helped revitalize the vision for missions within the Open Bible Standard Churches of Trinidad and Tobago. Their work in Trinidad and beyond has helped SGL to become a partner with the Global Missions department in helping connect, expand, and reach into other countries around the world with the Gospel. 

One of SGL’s greatest joys is hosting teams from Open Bible Churches in the United States. These short-term ministry experiences allow participants to encounter Trinidad’s diverse religious landscape, including Muslim, Hindu, and African-derived faith communities, while discovering how God may be calling them to serve. SGL also equips future missionaries through online courses and hands-on training. Whether you’re exploring God’s call, preparing for long-term service, or simply wanting to learn more about His work among the nations, we’d love to help you take your next step. 

Looking to the Future 

While Trinidad remains our training base, we believe God is expanding this vision. Our hope is to establish SGL training hubs in Europe, Asia, Latin America, and Africa so that future leaders can be equipped within their own languages and cultures. As we continue partnering with Global Missions, we believe God will open doors to train and equip missionaries from everywhere to everywhere. 

We are deeply grateful for the churches and individuals who pray for us and faithfully support this ministry (Philippians 1: 3). Together we are helping prepare the next generation of workers who will carry the gospel to the nations. Just as others invested in us, we now have the privilege of investing in those God is calling today – and we believe He will continue telling His story from generation to generation. 

About the Authors

Brent and Sara Kelderman are pastors and missionaries with Open Bible Churches USA. After serving as teachers at a public high school in Nebraska and as associate pastors in their local church, God expanded their calling into full-time missions. Throughout their marriage, God has woven a passion for the nations into their hearts. They currently serve within the School of Global Leadership (SGL) in Trinidad and Tobago. Their ministry includes hosting missions teams, leading missions training, and partnering with local churches. They are grateful for all God has done and look forward to all He will continue to do in and through their lives.