What does Isaiah 5:19 mean?
In the previous verse Isaiah declared a "woe" of judgment and sadness over those in Israel who continually and intentionally participate in sinful rebellion against God (Isaiah 5:18). These actions are all without fear of consequences. Now Isaiah describes their mockery warnings about sin and its consequences. He quotes these people as responding to prophecies by saying, in essence, "Tell God to get on with it. Tell Him to hurry up and bring this judgment already. We want to see it. Come now, we are ready."This resembles some modern critics of religion who purposefully "blaspheme" God as a way of mocking faith. They dare God to react, then sneer when consequences don't come immediately. The sinners to whom Isaiah speaks were openly taunting the God of Israel. This contempt cements the understanding that they didn't honestly think that there would ever be consequences to their actions. Their response shows that they were tired of hearing Isaiah talk about it and were daring God to "just do it, already."