John Gill Commentary Deuteronomy 28:36

"Jehovah will bring thee, and thy king whom thou shalt set over thee, unto a nation that thou hast not known, thou nor thy fathers; and there shalt thou serve other gods, wood and stone." — Deuteronomy 28:36 (ASV)

And the Lord shall bring you, and your king which you shall
set over you
This was fulfilled both in Jehoiachin and in Zedekiah, kings of Judah, who were carried captive to Babylon, by Nebuchadnezzar, (2 Kings 24:15) (2 Kings 25:6 2 Kings 25:7) ;

unto a nation which neither you nor your fathers have known ;
the land of Babylon, which was at a distance from them, and is represented in Scripture as afar off, (Jeremiah 5:15) ; and which the Jews, not being a trading people, or dealing in merchandise in foreign parts, were unacquainted with:

and there shall you serve other gods, wood and stone ;
which they were obliged to do in Babylon, of which it seems best to understand it; for though it may be interpreted of their compliance with the image worship of the Papists in their present condition, as the former clause may be of their rulers and governors, included in the name of king, carried captive by the Romans; who were a nation as little, if not less known than the Babylonians: but the former sense seems to suit best here, as this does with (Deuteronomy 28:64) ; where the language is somewhat different, and very appropriate. The Targum of Jonathan is, shall pay tribute to those that worship idols of wood and stone.