I’ve read and know the Book of Daniel and there is not a single verse that mentions specifically “house of Israel” or “house of Judah” having been united since 721 BC. You need to look somewhere else, but you will never find the answer to my question in the Bible. Keep searching.
Blessings in your search for TRUTH.
Right, the Book of Daniel is not specific on this. Both of these "houses" were taken captive: the first ten by the Assyrians and the last two by the Babylonians. When Cyrus gave the order for the temple to be rebuilt in Jerusalem, a remnant of all the twelve tribes returned, but most of them remained in Babylon. Watch for my next thread topic :-)