There is nothing in the nature of a miracle that should render it incredible : its credibility depends upon the nature of the evidence by which it is supported. An event of extreme probability will not necessarily command our belief unless upon a sufficiency of proof; and so an event which we may regard as highly improbable may command our belief if it is sustained by sufficient evidence. So that the credibility or incredibility of an event does not rest upon the nature of the event itself, but depends upon the nature and sufficiency of the proof which sustains it.
"Passages from the life of a philosopher", Appendix: Miracle. Note (A), p. 88 - Passages from the Life of a Philosopher (1864)