Fictional Infant Faith
The cause of infant baptism is not the actual faith of infants, of which they are no more capable than of that instruction by which the disciples of Christ are taught (Mt. 28:19).
Francis Turretin, Institutes of Elenctic Theology, ed. James T. Dennison Jr., trans. George Musgrave Giger, vol. 3 (Phillipsburg, NJ: P&R Publishing, 1992–1997), 419.