Isaiah 28:17. “Judgment also will I lay to the line, and righteousness to the plummer: and the hail shall sweep away the refuge of lies, and the waters shall overflow the hiding place.”
God isn’t going to be lenient in His judgment on Judah. They will be held to the strictest letter of the law. Righteousness will be like a plummer, or plumb line, which you see pictured above. A heavy piece of metal was attached to a cord, and the metal would make that cord a straight line for measuring, for building, for surveying land. God’s righteousness would be the plumb line, inarguable and without doubt.
Judgment in the form of mighty armies would cover the land like a heavy hail storm, creating destruction and desolation along the way. The destruction would be like a rushing flood, destroying all the false things they had relied upon for safety, washing away their hiding places.
It’s a pretty grim picture, isn’t it? You’d think, with such a stern warning, the people of Judah would have repented and been spared God’s wrath. But they didn’t.