In this passage, God uses powerful imagery to communicate His impending judgment on Jerusalem. The measuring line and plumb line are tools used in construction to ensure that buildings are level and true. Here, they symbolize God's standards of righteousness and justice. By referencing these tools, God indicates that He will apply the same standards to Jerusalem as He did to Samaria and the house of Ahab, both of which faced severe consequences for their disobedience and idolatry.
The metaphor of wiping a dish clean and turning it upside down is a vivid illustration of thoroughness. It suggests that God will completely cleanse Jerusalem, removing all that is unclean or unrighteous. This imagery conveys the seriousness of God's judgment but also implies the possibility of renewal and starting anew after the cleansing. The passage serves as a reminder of the importance of living in accordance with God's will and the potential consequences of failing to do so. It encourages reflection on our own lives and the ways we can align more closely with divine principles.