New Living Translation
King Ahab of Israel and King Jehoshaphat of Judah, dressed in their royal robes, were sitting on thrones at the threshing floor near the gate of Samaria. All of Ahab's prophets were prophesying there in front of them.

King James Bible
And the king of Israel and Jehoshaphat king of Judah sat either of them on his throne, clothed in their robes, and they sat in a void place at the entering in of the gate of Samaria; and all the prophets prophesied before them.

Darby Bible Translation
And the king of Israel and Jehoshaphat the king of Judah, having put on their robes, sat each on his throne; and they sat in an open place at the entrance of the gate of Samaria; and all the prophets prophesied before them.

World English Bible
Now the king of Israel and Jehoshaphat the king of Judah sat each on his throne, arrayed in their robes, and they were sitting in an open place at the entrance of the gate of Samaria; and all the prophets were prophesying before them.

Young's Literal Translation
And the king of Israel and Jehoshaphat king of Judah are sitting, each on his throne, clothed with garments, and they are sitting in a threshing-floor at the opening of the gate of Samaria, and all the prophets are prophesying before them.

2 Chronicles 18:9 Parallel