"And therefore will the LORD wait, that he may be gracious unto you, and therefore will he be exalted, that he may have mercy upon you: for the LORD is a God of judgment: blessed are all they that wait for him. For the people shall dwell in Zion at Jerusalem: thou shalt weep no more: he will be very gracious unto thee at the voice of thy cry; when he shall hear it, he will answer thee." (Isaiah 30:18-19)
Once again, God's grace is emphasized as the last part of this chapter discloses Israel's restoration. The Lord is in no hurry. He knows what it will take to bring Israel to faith in the Messiah. With great patience and wisdom, the Lord is working all things toward the day when the world will worship before Him in truth. In that day, Jerusalem will be His prized city, and the Jewish nation will be raised to a position of prominence because of the Lord Jesus Christ. God is a God of judgment. He will not rest until the earth is filled with His judgment. Until that time, anyone may find a happy refuge under His gracious wing. Had Isaiah's audience repented and waited upon God while observing the heart and letter of His Law, they too would have found the blessedness mentioned in the text.
A promise is given concerning God's favor toward the inhabitants of Jerusalem. Under the pressure of Sennacherib's threats, King Hezekiah cried to God for help, and God graciously answered. Undoubtedly, this event is in view. However, the future restoration of God's people is the main thrust of this prophecy. The gracious nature of God is highlighted toward the end of verse 19. The Lord strongly desires the restoration of both Jew and Gentile. Human pride and disbelief, not unconcern on God's part, keep people from obtaining deliverance.