The sin of Judah went a stop further than that of Samaria. She courted the alliance of the Chaldeans. Probably the sojourn of Manasseh at Babylon (2 Chronicles 33:11) led him to see in that city a possible rival to Assyria.
The embassy of Merodach-Baladan to Hezekiah (Isaiah 39:1-8.) implies, on the other hand, that Babylon was looking to Judah for support against Assyria. The prophet represents this political coquetting, so to speak, as another act of whoredom.
Aholibah saw the images of the Chaldeans portrayed with vermilion (probably "red ochre:" colors seem to have been used largely both in Assyrian and Babylonian sculpture as in Egyptian, and Judah seems to have copied them, Jeremiah 22:14) and fell in love with them.
As the passions of a Messalina might be roused by sensuous pictures of masculine beauty, so Judah was led on by what her envoys reported of the magnificence of the palaces, the strength of the armies, of the Chaldeans.
The journey of Jonah to Nineveh, and those implied in Hosea 7:11, as well as the prophecy of Nahum, all indicate a more or less intimate knowledge of the Mesopotamian monarchies. The mission of Merodach-Baladan would be naturally followed by a return embassy from Judah.
A later instance under Zedekiah meets us in Jeremiah 29:3.