He answered them, “[It was] because you had such little faith. For truly I tell you, if you have faith as [small as] a mustard tree seed, you could say to this mountain, ‘Move from here to that place over there’ and it would move. And nothing will be impossible for you [to do].”
For when an evil spirit takes hold of him he suddenly screams and [then] it throws him into convulsions so that he foams [at the mouth]. And it does not want to leave him, [even after] severely bruising him.
And Jesus replied, saying, “You perverse generation of faithless people! How long must I be [patient] with you, and put up with you [i.e., before you understand]? Bring your son here.”