Tim Challies is a Christian, a husband to Aileen and a father to three children aged 10 to 16. He worships and serves as a pastor at Grace Fellowship Church in Toronto, Ontario, where he primarily gives attention to mentoring and discipleship. He is a book reviewer for WORLD magazine, co-founder of Cruciform Press, and has written three books including ,  , and  . He writes daily at www.challies.com.