Adam Clarke on Daniel 8:1

In the third year of the reign of - Belshazzar - We now come once more to the Hebrew, the Chaldee part of the book being finished. As the Chaldeans had a particular interest both in the history and prophecies from Dan 2:4 to the end of chap. 7, the whole is written in Chaldee, but as the prophecies which remain concern times posterior to the Chaldean monarchy, and principally relate to the Church and people of God generally, they are written in the Hebrew language, this being the tongue in which God chose to reveal all his counsels given under the Old Testament relative to the New.