The locusts have eaten up Israel's harvest, and emptied the temple's stores.
The day of Yahweh is coming. A terrible army that is coming against Israel. But there is still time to repent, and change what is coming. When Israel assembled and wept and lamented and repented, God had pity and restored Israel. So also, now, God will pour out His Spirit on all, and everyone who calls on Yahweh's name will be saved.
God will restore Israel, but judge the nations.