A RENEWAL OF PROMISE. The denunciations of the preceding passage (Isaiah 30:9-17) had been so terrible that, without some counterpoise of promise, they must have produced a general despair. This was not the Divine purpose.
Judah's probation still continued. Therefore it was necessary to let it be seen that the Divine long-suffering was not yet exhausted—there were still conditions under which God would be gracious to his people.
The conditions were "crying to the Lord" (Isaiah 30:19), and entire abolition of idolatry (Isaiah 30:22).