15 A leech has twin daughters named "Gimme" and "Gimme more." Four Insatiables Three things are never satisfied, no, there are four that never say, "That's enough, thank you!" - 16 hell, a barren womb, a parched land, a forest fire. 17 An eye that disdains a father and despises a mother - that eye will be plucked out by wild vultures and consumed by young eagles. Four Mysteries
Matthew Henry's Commentary on Proverbs 30:15-17
Commentary on Proverbs 30:15-17
(Read Proverbs 30:15-17)
Cruelty and covetousness are two daughters of the horseleech, that still cry, "Give, give," and they are continually uneasy to themselves. Four things never are satisfied, to which these devourers are compared. Those are never rich that are always coveting. And many who have come to a bad end, have owned that their wicked courses began by despising their parents' authority.