Jerome, Saint. [Letter to Marcella, 385 (2)] in Sancti Eusebii Hieronymi Epistulae ep.41

[Letter from Jerome to Marcella]
Jerome responds to Marcella's questions about New Testament discrepancies pointed out by Montanists. Jerome answers all of them, though he notes that since she has the scriptures in hand, she before all others does not need his answers but only wants to get his thoughts on the subject. Note that Jerome never identifies biblical passages he cites, a common omission among Christian writers, but in this case he would have been certain that Marcella could identify the context.
Online at Epistolae (See also Bibliographia record).