What does Isaiah 5:2 mean?

He dug the soil, cleared away the rocks, and planted the best vines. He built a watchtower in the middle and carved out a winepress. He expected it to grow good grapes, but it only produced sour, useless ones. Isaiah 5:2 - Modern Text Bible

(God did everything possible for his people to thrive—he gave them every advantage. But instead of good results, he got disappointment and failure.)