Patristic
“This saying, If thou canst, is a proof of the freedom of the will. Again, all things are possible to him that believeth, which evidently means all those things which are prayed for with tears in the name of Jesus, that is, of salvation.”
Catena Aurea: Gospel of Mark, as excerpted in the Catena Aurea on Mark 9:14-29
PD · J. H. Newman (Oxford, 1842) ↗