And immediately the father of the child cried out, and said with tears, Lord, I believe; help my unbelief.
All Commentaries on Mark 9:24 Go To Mark 9
Augustine of Hippo
AD 430
Where faith fails, prayer perishes. For who prays for that in which he does not believe? … So then in order that we may pray, let us believe, and let us pray that this same faith by which we pray may not falter.