Because thou, O Israel, hast forgotten the God of thy salvation That God, who was thy only sure defence; therefore shalt thou plant pleasant plants Fetched from far countries, and therefore highly esteemed. The sense is, Thou shalt use much industry and cost, but to no purpose, as it follows. In the day shalt thou make thy plant to grow, &c. Beginning early in the morning, thou shalt, from day to day, use all care and diligence, that what thou hast planted and sown may thrive; but the harvest shall be a heap, &c. But in the time of your grief, or when this grievous calamity shall come, all your harvest shall be but one heap, very inconsiderable in itself, and easily carried away by your enemies: in other words, “when thou expectest to reap the fruit of thy labours, thou shalt find nothing but loss and disappointment.” Lowth. See the margin, where the day of inheritance means the time of enjoying any thing which we have taken pains for.
Related Commentaries of Isaiah 17:10
Isaiah 17:10-11
10 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:
11 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 heapb in the day of grief and of desperate sorrow.