What mean ye, that ye use this proverb concerning the land of Israel, saying, The fathers have eaten sour grapes, and the children’s teeth are set on edge?

Why do you make use of this saying about the land of Israel, The fathers have been tasting bitter grapes and the children's teeth are on edge?

Τι εννοειτε σεις, οι παροιμιαζομενοι την παροιμιαν ταυτην περι της γης του Ισραηλ, λεγοντες, Οι πατερες εφαγον ομφακα και οι οδοντες των τεκνων ημωδιασαν;

What mean ye, that ye use this proverb concerning the land of Israel, saying, The fathers have eaten sour grapes, and the children’s teeth are set on edge?