2:15-27 The priests and rulers are to appoint a solemn fast. The sinner's supplication is, Spare us, good Lord. God is ready to succour his people; and he waits to be gracious. They prayed that God would spare them, and he answered them. His promises are real answers to the prayers of faith; with him saying and doing are not two things. Some understand these promises figuratively, as pointing to gospel grace, and as fulfilled in the abundant comforts treasured up for believers in the covenant of grace.
18. Then—when God sees His people penitent.
be jealous for his land—as a husband jealous of any dishonor done to the wife whom he loves, as if done to himself. The Hebrew comes from an Arabic root, "to be flushed in face" through indignation.