אָנֹכִ֥י אָנֹכִ֖י יְהוָ֑ה וְאֵ֥ין מִבַּלְעָדַ֖י מוֹשִֽׁיעַ׃
איך, איך בין ה׳, און חוץ מיר איז קײן העלפֿער ניטאָ.
Sefer HaIkkarim
Chapter nineteen explains that every attribute ascribed to God is eternal in both directions like Him, and that God does not change since He is not subject to time, while everything else changes. It explains Psalm 37, 25 together with the statement of the Rabbis that the Prince of the World is the author thereof. It gives a reason also for the repetition of the pronoun I in Is. 43, 11.