Christopher J. H. Wright (PhD, Cambridge) is the Global Ambassador for the Langham Partnership, providing literature, scholarships, and preaching training for pastors in Majority World churches and seminaries. He has written many books including commentaries on Deuteronomy, Jeremiah, Lamentations, and Ezekiel, The Mission of God, Cultivating the Fruit of the Spirit, Old Testament Ethics for the People of God, and Knowing Jesus Through the Old Testament. An ordained priest in the Church of England, Chris spent five years teaching the Old Testament at Union Biblical Seminary in India, and thirteen years as academic dean and then principal of All Nations Christian College, an international training center for cross-cultural mission in England. He was chair of the Lausanne Theology Working Group from 2005-2011 and the chief architect of The Cape Town Commitment from the Third Lausanne Congress, 2010.

Hélder Favarin is the Global Youth and Young Adult Initiatives Director for Community Bible Study International. He's an evangelist, missionary and co-founding pastor of C29 Granada Church, Spain. He has a doctorate in preaching (Dmin.) from the Talbot School of Theology and a master's degree in biblical interpretation from the London School of Theology. Hélder speaks internationally in Spanish, Portuguese and English. He's part of the founding teams of RedTimoteo (a program for young evangelists in Spain) and the EYE (European Young Evangelists) Network. He's the author of the coming book "Expand: Preaching to both Christians and Non-Christians from the Same Sermon in Spain". Hélder was born in Brazil and has also lived in Mexico, England, Scotland and Spain (for 12 years); he holds an Italian nationality as well. Hélder is married to Ana and they have four children born in Granada, where they live.

Anne E. Zaki was born in Cairo. She studied psychology and sociology at Calvin University in the USA. Then she earned a Master’s in Social Psychology from the American University in Cairo. She returned to the USA, where she earned a Master of Divinity from Calvin Theological Seminary. During that time she married Rev. Naji Umran, and together they served churches in Cairo, Michigan (USA), and British Columbia, Canada.

Since 2013, she has been teaching courses on preaching, communication, psychology, worship, and spiritual formation at the Evangelical Theological Seminary in Cairo. Moreover, she is completing a PhD in Preaching at Fuller Theological Seminary in the USA.

Her areas of interest include travel, learning about the different cultural influences on the church worldwide, preaching renewal, creating new ministries, mentoring youth, administration, poetry, and music.

She is a mother of four sons: Jonathan, Sebastian, Emmanuel and Alexander.

Adam Szumorek is a preacher, teacher, and writer. He studied preaching in Poland, Canada, USA and UK. He earned his master’s degree in preaching from Lincoln Christian University in USA and his PhD from Spurgeon’s College in London. Adam is a teaching pastor at TOMY Christian Fellowship in Tomaszów Mazowiecki in Poland. He works with Proem Ministries, where he is involved in educational and missional projects. His greatest passion is teaching how to communicate the Word of God faithfully to contemporary listeners. He also cooperates with Langham Preaching and Langham Literature writing books on homiletics, literary forms of the Bible, and discipleship resources. Considering all his life roles, his favourite one is simply being the child of God.