10But the day of the Lord will come like a thief. The heavens will disappear with a roar. Fire will destroy everything in them. God will judge the earth and everything in it. 11So everything will be destroyed. And what kind of people should you be? You should lead holy and godly lives. 12Live like that as you look forward to the day of God. It will make the day come more quickly. On that day fire will destroy the heavens. Its heat will melt everything in them.