ויקרא שמו יעקב. אותיות יעקב ד' כנגד ד' עטרות שעתידין בניו לעטר הקב"ה י' כנגד י' הדברות ע' כנגד שבעים זקנים ק' כנגד היכל שבנו להקב"ה שנאמר בו וההיכל מאה אמה. ב' כנגד ב' לוחות ובזכות יעקב נגאלו ישראל ממצרים שנא' ויעמידה ליעקב לחק לישראל וגו' ואלמלא יעקב לא נפדה אברהם מן הכבשן שנאמר כה אמר ה' אל בית יעקב אשר פדה את אברהם. ד"א דרשו רז"ל שפדאו מצער גידול בנים: ויקרא שמו יעקב, “he called his name Yaakov.” The name Yaakov has four letters, symbolising the four crowns with which his descendants would “crown” the Almighty. The letter י symbolises the Ten Commandments. The letter ע symbolises the seventy elders. The letter ק symbolises the length of hundred cubits of the Sanctuary built by King Solomon. (Kings I chapter 7) The letter ב symbolises the two Tablets upon which the Ten Commandments were inscribed. The Israelites were redeemed from slavery in Egypt due to the merit of Yaakov. We know this from Psalms 105,10: ויעמידה ליעקב לחק, לישראל ברית עולם, “He confirmed it as a decree for Yaakov, as an eternal covenant for Israel.” If it had not been for the fact that G–d wanted Yaakov to be born, He would not have saved Avraham from Nimrod’s furnace. (B’reshit Rabbah 63,2).This is what the prophet Isaiah 29,22, had in mind when he wrote: כה אמר ה' אל בית יעקב אשר פדה את אברהם, “thus said the Lord to the house of Yaakov which had redeemed Avraham. A different interpretation of that verse in Isaiah [which begs the question, Ed.] by Yalkut Shimoni: Yaakov released Avraham from the heartache associated with trying to raise children. [He did so by successfully raising all his children in his spirit, something neither Avraham nor Yitzchok had been able to do. Ed.]