The vineyard story in Isaiah compliments the vineyard story in Matthew. In the first story, God cares for a vineyard, and the fruit (the people) is not sweet but bitter. In the Gospel, God cares for a vineyard but at harvest time the farmers kill the vineyard owner’s son (Jesus). Jesus reminds the listeners that this story echoes Psalm 188, which proclaims the value of the rejected cornerstone. Paul urges us to live according to what we have learned and accepted, in order to be less anxious and more at peace with God.