Arthur Peake's Commentary on the Bible - Matthew 17:14-21
Matthew 17:14-Ecclesiastes : . Healing of the Demoniac Boy ( Mark 9:14-Joel : *, Luke 9:37-John :).— The story is much shorter than in Mk. The reference to possession does not come till the end; in Matthew 17:15 the child is described as epileptic. Perhaps the story was told in Q. The father’ s appeal, “ Lord, have mercy” ( Matthew 17:15), gives us the well-known “ Kyrie eleison.” Instead of prayer (the verse ( Matthew 17:21) in Mt. is spurious) and fasting ( Mark 9:29), Jesus here puts the... read more
Peter Pett's Commentary on the Bible - Matthew 17:20-21
‘And he says to them, “Because of your little faith. For truly I say to you, If you have faith as a grain of mustard seed, you will say to this mountain, ‘Remove hence to yonder place’, and it will remove, and nothing will be impossible to you.” ’ Jesus explains that the reason that they had failed was because of the insufficiency of their faith. That it was quality of faith and not the size of it that mattered comes out in the comment that followed. If faith is of the right quality then only... read more