'Robes' in the Bible

Now the king of Israel and King Jehoshaphat of Judah were each sitting on their own thrones, arrayed in their robes, and sitting on the threshing floor at the entrance to the city gate of Samaria, and all of the prophets were prophesying in front of them.

She looked around, and there was the king, standing by his pillar at the gate, accompanied by officers and trumpeters who stood beside the king, along with all the people of the land rejoicing and sounding trumpets while singers lead the celebration with their musical instruments. Athaliah tore her robes and yelled "Treason! Treason!"