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About our associates

Our associates contribute to the work of the Centre as speakers and authors in areas of expertise. To find out about the criteria associates must meet click here.

Sarah Coffey

Andy Witherall

Sarah lives in the Ards Peninsula with her husband Kurtis and their daughter. She works as a Registered Nurse in Community & Primary Care setting. 

Sarah has a keen interest in gospel-centred apologetics with a particular focus on young people and women. In addition, she has a passion for standing for life and speaking out truthfully against abortion and currently serves as spokesperson for NIvoiceless. 


As an Associate with the Centre, Sarah is one of our Knitted Together speakers.

Andy is a lay evangelist with the Methodist Church in Ireland, based in County Tyrone.


His sense of calling to be as an evangelist began when he was a Relay Worker with UCCF. He subsequently worked with London CIty Mission and obtained a master’s degree in Philosophy and Religion at Heythrop College.


He is passionate about engaging people in the important questions and objections surrounding faith and culture and in training and equipping believers to give a defence for the hope that they have.


As an Associate with the Centre, Andy speaks on a range of apologetics and cultural issues.

Tim Houston

Tim lives in Belfast with his wife Claire. He is studying for a Bachelor of Divinity at the Irish Baptist College and preaches regularly. He has a Bachelor of Arts in History and Theology from Queen’s University. Previously he worked in banking and hospitality but always with a sense of God’s call on his life for full-time ministry. 


Tim has taught English and Bible lessons with CEF Romania online and in-person and he and his wife have a passion for the work in Romania. In his spare time he enjoys reading, board games, drums and playing basketball. 


As an Associate with the Centre, Tim is one of our Knitted Together speakers.

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