To push down into the ground or dust is a sign of great humiliation. AT: "You have defiled his crown on the ground" or "You have caused his crown to fall into the dirt" (See: [[rc://en/ta/man/translate/translate-symaction]])
# his crown
This represents the king's power as king and his right to rule. (See: [[rc://en/ta/man/translate/figs-metonymy]])
# You have broken down all his walls. You have ruined his strongholds
This implies that God allowed enemies to destroy the defenses at Jerusalem. AT: "You have allowed enemies to break down his walls and ruin his strongholds in Jerusalem" (See: [[rc://en/ta/man/translate/figs-explicit]])