"Jonathan's presence with us at Wycliffe Hall and within the wider University of Oxford was a great blessing. Our students very much valued his enthusiastic teaching of Greek language and his insights into biblical thought. His lectures combine a commitment to Scripture with a deep knowledge of the early church period–which always gives his teaching an added quality of historical depth."
— Rev. Dr. Peter Walker, Associate Vice-Principal of Wycliffe Hall, University of Oxford
"Jonathan's teaching on A History of Christianity: The First Five Centuries was very helpful for our pastoral staff; it was eye-opening and well worth our time. I warmly recommend him to you."
— Dr. James Samra, Senior Pastor, Calvary Church, Grand Rapids
"Jonathan's seminars are informative, well-packaged, and fascinating biblical presentations that are both academically excellent and spiritually enriching."
— Joel Beeke, Ph.D., President of Puritan Reformed Theological Seminary, Grand Rapids
"Studying Paul's Epistle to the Romans gives us the best understanding of the gospel message that Paul preached.... Jonathan J. Armstrong's seminar at ETS in the fall of 2008 helped our students to realize the importance of this book for their lives and ministry."
— Alexei Gorbachev, Ph.D., Academic Dean of Eurasian Theological Seminary, Moscow
"Dr. Jonathan Armstrong's courses on the Interpretation of the Bible in the early church and the mission and expansion of the church in 30-180 AD have been excellent both in terms of their content and presentation. They contributed significantly to the quality of our programme and have enhanced the students’ understanding of the importance of the early church’s history and its relevance for understanding the Bible."
— Tchavdar Hadjiev, D.Phil, IFES Associate Regional Secretary for Europe; Academic Dean of the United Theological Faculty of the Bulgarian Evangelical Theological Institute