John Chrysostom — as excerpted in the Catena Aurea on Matthew 18:1-6

“To correspond with the foregoing, He should have said here, Receiveth not Me, which were bitterer than any punishment; but because they were dull, and the before-named punishment did not move them, by a familiar instance He shews that punishment awaited them; for He therefore says, it were better for him, because another more grievous punishment awaits him.”