[3] Roberts then moved to Oxford and in 1989 entered Wycliffe Hall, an Anglican theological college.
[5] From 2009, Roberts also served as Director of the Proclamation Trust, an evangelical Christian association dedicated to training preachers in expository preaching.
[6] He has written a number of Christian books, including Turning Points, Distinctives, Battles Christians Face, True Worship, Life's Big Questions and God's Big Picture (an introduction to Biblical theology).
In July 2024, he was commissioned by the Church of England Evangelical Council as an "overseer" to provided alternative spiritual oversight (not to be confused with the Church of England's official alternative episcopal oversight) to evangelical clergy and parishes in the Church of England who maintain traditional teaching on the doctrine of marriage and sexual ethics, following the General Synod's support for the introduction of a service of blessing for same sex couples.
[9] In the fifth anniversary edition of Battles Christians Face a new preface was added in which Roberts acknowledged struggles with unwanted same-sex attraction.