Ibn Ezra on Lamentations
RETURN US-To the city of the dwelling place (sanctuary) of your name, and we shall return to serving (worshiping ) You as in days of old.
Rashi on Lamentations
Adonoy return us. Because he concludes with words of reproof, he had to repeat the preceding verse again,14In order to end on a note of consolation. and so did Yeshayahu, Trei Osor, and Koheles.