John Chrysostom — as excerpted in the Catena Aurea on Mark 10:17-27

“(ubi sup.) And the Evangelist adds the cause of his grief, saying, For he had great possessions. The feelings of those who have little and those who have much are not the same, for the increase of acquired wealth lights up a greater flame of covetousness. There follows: And Jesus looked round about, and said unto his disciples, How hardly shall they that have riches enter into the kingdom of God.”