Don Graybill is National Co-Director for the Navigators’ Church Discipleship Ministries and as such is responsible for leading a team of missionaries committed to partnering with churches across America helping them to become intentional in life-to-life disciplemaking. Don brings a wealth of experience in the area of intentional leadership development, mentoring, and small group/church-wide strategic planning.

During his 21-year career in the US Air Force, Don held key positions in space research development and management fields, including assignments in Korea, Okinawa and the Pentagon. Upon retirement from the Air Force, Don followed God to a full-time staff relationship with the Navigators’ Church Discipleship Ministries to open up a new disciplemaking ministry within New England for six years before they transferred to Pennsylvania. He and his wife Marilyn have four grown children, Chad, Andy, Christy, and Aaron. They also have eight grandchildren.

Rev. Tony Yeo serves as the Deputy Senior Pastor of Covenant EFC. As an Associate Pastor in the Senior Pastor’s Office team, he supervises several ministries such as the youth, worship, outreach and missions. He is also the General Secretary of the Evangelical Fellowship of Singapore (EFOS).

Tony is a people-centered, principle-focused and purpose-driven leader, with a track record of proven management and leadership gifts. As a beneficiary of mentoring, he has a passion for leadership development through disciplemaking and mentoring, and is intentionally mentoring leaders both within and outside of Covenant EFC on a weekly and monthly basis. A graduate with Honours from Singapore Bible College, and Tyndale Seminary in spiritual formation, he is married to Choy Mei and they have two sons, Timothy and Noah.

Rev. Tan Kay Kiong is part of the Senior Pastor’s office team that supervises various ministries in Covenant Evangelical Free Church. He also serves as the Family Life Ministry pastor. A gifted shepherd and counsellor, he mentors both individuals and couples and is passionate about helping families master their life transitions.

Kay Kiong graduated from Singapore Bible College with a Bachelor of Theology, and has a Diploma in Family Life Education from Edith Cowan University, Perth. He has been married to Diana for 18 years, and they have two teenage daughters, Hilda and Hazel.

Rev. Dr. Chua Chung Kai is an Associate Pastor of Covenant Evangelical Free Church, serving on the Senior Pastor’s Office team and overseeing the Prayer Ministry, Central Zone, Young Adults and New Life Community Services in the church. An insightful expositor of the Word, he has a gift of explaining complex ideas in the simplest ways.

A medical doctor by training, Chung Kai graduated from the National University of Singapore in 1989. He subsequently graduated with a Masters Degree from the Singapore Bible College in the year 2000 and was ordained in 2004. He is married to Tina and they have three children, John, Joel and Joanne.

Pastor Ann Chan ministers actively alongside her husband, Rev. Edmund Chan, the Senior Pastor of Covenant Evangelical Free Church and serves as an Associate Pastor in the Senior Pastor’s Office team. A gifted leader and teacher, she has pioneered many of Covenant EFC’s ministries, including the Intentional Discipleship Training programme as well as the Women-In-Covenant ministry.

An educator by training, Ann graduated with a Master of Arts degree in Christian Education (with honours) from Trinity Evangelical Divinity School in 1994. She has also mentored, preached and taught in Hong Kong, Australia, America and London. She and Edmund have two daughters, Amanda and Belicia.