What is the meaning of "v'Shachavti Im Avosai"?
Rashi: It means - following Ya'akov's request that Yosef should swear that he would bury him in Kena'an - 'As for me, I am about to die (to join my fathers in death)'. 1
Why does the Torah not relate that Yosef placed his hand underneath his father's thigh?
Targum Yonasan: Because he considered doing that to his father a lack of Kibud Av? 1
Moshav Zekenim (29): One may not bathe with his father, and all the more so one may not put his hand on his father's Ever! 2
Hadar Zekenim (29): Yosef did not want to do so, due to "v'Lo Yegaleh Kenaf Aviv." He swore without putting his hand there.
How can Nazir 65a learn from "u'Nsasani" that a Mes acquires the earth in which it was buried, and one must take the earth with it? Yakov was never buried in Mitzrayim!
Moshav Zekenim: Yakov meant, do not bury me in Mitzrayim, lest you need to take the earth with me afterwards.
Why did Yosef say "I will do like your words" [and not 'I will do so']?
Da'as Zekenimaa Hadar Zekenim, citing a Midrash: I will do similarly before dying, and command my brothers to take me from Mitzrayim [and bury me in Eretz Yisrael].
Da'as Zekenim: Rashi (Shmos 3:18) says that both Yakov and Yosef gave a tradition "Pakod Yifkod". It says explicitly that Yosef said so. Since he said "I will do like your words", we infer that also Yakov did so.
רש"י: ושכבתי...וי"ו זו מחובר למעלה: מנין לרש"י לפרש כך?
גור אריה: קשה שמדובר כשהוא כבר מת שנאמר "אל תקברני", וא"כ מה פרוש "ושכבתי"? [אלא הכוונה- ואני כבר שכבתי עם אבותי].
רש"י: בשביל חלקך במערה: מה מעלת הקבורה במערה?
גור אריה (לעיל מז,כט): המתים עתידים לעמוד מתוך המערה.
מהר"ל (חידושי אגדות ח"ג עמ' פד, ד"ה ואמר והא, ב"ב דף נח.): המערה כפולה ושם נקברו האבות, כי כל אב מעלתו כפולה- מעלת עצמו ומה שהוא סיבה לבניו.