'Grapes' in the Bible

And he dug it and cleared it of stones, and he planted it [with] choice vines, and he built a watchtower in the middle of it, and he even hewed out a wine vat in it, and he waited for [it] to yield grapes-- but it yielded wild grapes.

What more [was there] to do for my vineyard that I have not done in it? Why did I hope for [it] to yield grapes, and it yielded wild grapes?