Now will I sing to my wellbeloved a song of my beloved touching his vineyard. My wellbeloved hath a vineyard in a very fruitful hill: And he fenced it, and gathered out the stones thereof, and planted it with the choicest vine, and built a tower in the midst of it, and also made a winepress therein: and he looked that it should bring forth grapes, and it brought forth wild grapes.
In the song which Isaiah sings for his well-beloved, which is Jehovah God, he rehearses the tender care that He has for His vineyard. God chose the best location, cultivated the land, planted it with the choicest vine, protected it, and prepared a winepress in hope of a good harvest. Instead of the harvest He expected, obedience, thanksgiving, love, worship, and service, He found wild grapes, which represent disobedience, rebellion, and idolatry.