'King of Judah' in the Bible

Now it came about in the days of Ahaz, the son of Jotham, the son of Uzziah, king of Judah, that Rezin the king of Aram and Pekah the son of Remaliah, king of Israel, went up to Jerusalem to wage war against it, but could not conquer it.

“Thus you shall say to Hezekiah king of Judah, ‘Do not let your God in whom you trust deceive you, saying, “Jerusalem will not be given into the hand of the king of Assyria.”

A writing of Hezekiah king of Judah after his illness and recovery: