Razei Emunim
The Brothers Were Frightened by the Secret of Amen
ולא חי אבי העוד יוסף אני אחיו אל יוסף ויאמר” (ג מה) “מפניו נבהלו כי אתו לענות אחיו יכלו
The Ben Ish Chai explained: The numerical value of the milui of the letters of the word יוסף [meaning יוד from י, ויו from ו, סמך from ס, and ה from פ] amount to ninety-one, which is the same as amen. Therefore, the passuk says that the brothers of Yosef “nivhalu mipanav” – they were frightened by the sod of amen that is alluded to inside [בפנים] the letters of his name. (Aderes Eliyahu)
Amen - The Sod of the Conduct of Yaakov
ויאמר :חייך שני ימי כמה יעקב אל פרעה ויאמר” “שנה ומאת שלשים מגורי שני ימי פרעה אל יעקב (ט-ח מז)
The Ma’or Vashemesh explained: To the question of “how many days are in the years of your life” Pharoah meant to ask Yaakov, what is the special conduct in this world that he practiced all his life? And to this Yaakov replied that the secret of his conduct was concealed in his name, because יעקב is numerically equivalent to twice amen. And this is also alluded to in the passuk, because the acronym of the words יעקב and of the words פרעה אל יעקב אל פרעה are numerically equivalent to amen.