以賽亞書 45:17 猶太思想：Akeidat Yitzchak

Midrash Tanchuma on Parshat Acharey Mot writes: G-d said to Israel, "in the past you have been helped by means of human beings; in Egypt by Moses and Aaron; in the days of Sisera by Barak and Deborah; against the Midianites by Shamgar etc. throughout the period of the judges. Because G-d employed a human being as His instrument in all of these salvations, the salvation did not last, and you became enslaved again and again. In the future however, I MYSELF will be your salvation, and you will never again be subjugated." This is the meaning of Isaiah 45,17, "Israel will be saved by the Lord, an eternal salvation."

The study of, and retention in memory of, Torah in that future will be far superior to what it is at present, since it is a well known fact that whatever is experienced personally, without the help of intermediaries, leaves a lasting impact, is impressed on one's memory indelibly. When the Jewish people begged Moses at Mount Sinai to act as the intermediary between them and the voice of G-d, they found out that what is learned from the lips of the intermediary is subject to being forgotten.