Origen
Catena Aurea · Matthäusevangelium 17
And when they were come to the multitude, there came to him a certain man, kneeling down to him, and saying, Lord, have mercy on my son: for he is lunatick, and sore vexed: for ofttimes he falleth into the fire, and oft into the water. And I brought him to thy disciples, and they could not cure him. Then Jesus answered and said, O faithless and perverse generation, how long shall I be with you? how long shall I suffer you? bring him hither to me. And Jesus rebuked the devil; and he departed out of him: and the child was cured from that very hour.
Or; Because the disciples could not heal him as being weak in faith, He said to them, O faithless generation, adding perverse, to shew that their perverseness had introduced evil beyond their nature. But I suppose, that because of the perverseness of the whole human race, as it were oppressed with their evil nature, He said, How long shall I be with you?