"From the childcare centre flowed a small school of 23 primary school students in 1988. That school grew and developed into a Year 1-13 school of 260 students.
"Just as a seed never really knows how many fruit it will have, the beginnings of Abundant Life were small and yet packed with God-infused potential," he added.
"Over the past four decades, hundreds of people have served in this place and hundreds upon thousands of people have been blessed and impacted by the Lord and this place we call home. I for one have been blessed to have been a part of this place called Abundant Life.
"Abundant Life has always been about whānau, creating employment, bettering our community and growing the Lord's kingdom. To God be the glory."
The anniversary will be marked with a celebratory service on Sunday, starting at 10:30am, Tan promising a fantastic time with the Lord, guest speakers, music, stories, laughter and great food.