Because thou hast forgotten the God of thy salvation, and hast not been mindful of the Rock of thy strength, therefore shalt thou plant pleasant plants, and shalt set it with strange slips: In the day shalt thou make thy plant to grow, and in the morning shalt thou make thy seed to flourish: but the harvest shall be a heap in the day of grief and of desperate sorrow.'--Isaiah 17:10-11.
THE original application of these words is to Judah's alliance with Damascus, which Isaiah was dead against. He saw that it would only precipitate the Assyrian invasion, as in fact it did. Judah had forsaken God, and because they had done so, they had gone to seek for themselves delights--alliance with Damascus. The image of planting a garden of pleasures, and vine slips of a stranger' refers to sensuous idolatry as well as to the entangling alliance. Then follows a contemptuous description of the rapid growth of this alliance and of the care with which Israel cultivated it. In a day thou makest thy plant to grow' (or fencest it), and next morning it was in blossom, so sedulously had they nursed and fostered it. Then comes the smiting contrast of what it was all for--A harvest heap in the day of sickness and incurable pain.'
Now we may take this in a more general way as containing large truths which affect the life of every one of us.