'Sour Grapes' in the Bible

He shall wrong - like a vine - his sour grapes, and shall cast off - as an olive-tree - his blossom.

In those days, shall they say no more, Fathers, did eat sour grapes, - And, children's teeth, are blunted!

But, every one, for his own iniquity, shall die, - Any human being who eateth the sour grapes, his own teeth, shall be blunted.

What occasion have ye, to be using this proverb, concerning the so of Israel, saying, - Fathers eat sour grapes, And the children's teeth are blunted?