Summary of passage: The remnant raises their voices, giving glory to God.
7a) “They” are the survivors, the believers, the remnant from the nations God saved. They trust Him and praise Him no matter what happens. They see the Earth’s devastation as a righteous act of a Holy God–not akin to the destruction Assyria rends.
b) Because “they” are the ones who have been praising Him faithfully and always. Psalm 76:10 Surely your wrath against men brings you praise, and the survivors of your wrath are restrained. Romans 9, particularly verses 22-29 discusses God’s sovereign choice and asks the question “What if God, choosing to show his wrath and make his power known, bore with great patience the objects of his wrath–prepared for destruction? What if he did this to make the riches of his glory known to the objects of his mercy, whom he prepared in advance for glory–….only the remnant will be saved. For the Lord will carry out his sentence on earth with speed and finality.”
In Romans, we get the answer to why God destroys the Earth–so the survivors (who were already chosen) would know His extreme glory and mercy. Awesome stuff.
8 ) Personal Question. My prayer: God, although I cannot understand your ways, I can understand your whys–to make me stronger, more dependent on you, and to know your unparalleled mercy, grace, and glory. Only you know the future and where you are leading me. Give me patience and courage to trust in you and your plans for my life.
9) The remnant praising God after the destruction and God reigning supreme on Earth. The world after will be what God had originally intended before the Fall and God will dwell with man, his creation, as He had intended instead of behind a wall of separation. It seems great as long as you and your family are part of the remnant.
Conclusions: Lots of goodies here. We learn God will destroy the Earth and keep His faithful for the reason the faithful will exalt him all the more and He can dwell amongst them as His original plan had been. This seems like good news, right? Hanging out with God will fellow believers and praising His goodness for eternity. Until you realize you may not be a part of the remnant or some of your most beloved are not a part of it. Then this does not bode well, does it? You may be destroyed and that doesn’t seem very pleasant a fate.
Yet, this is our choice today as well, whether we live to see this day or not. We either can choose to dwell with God for eternity in Heaven or we don’t and our loved ones may not either. So our action plan is to live the best life we can–His life–and try to make others do so as well (especially those closest to us).