Midrasch zu Divrej Hajamim I 7:27

(Ib. b) R. Avira expounded sometimes in the name of R. Ami, and at other times, in the name of R. Assi: "What is the meaning of the passage (Gen. 21, 8) And the child grew and was weaned; i.e., in the future, the Holy One, praised be He! will make a banquet for the righteous on the day He will show kindness unto the children of Isaac. After they will have eaten and partaken of drink, a cup of wine will be given to Abraham on which to recite the Grace, and they will say to him: 'Say the Grace.' Abraham's reply will be, 'I shall not recite the Grace, because Ishmael went forth from me.' They will give it [the honor of reciting grace] to Isaac, and he will say, 'I am not tit to recite the Grace, because Esau went forth from me.' They will then give it to Jacob, who will refuse, saying, 'I am not fit to recite the Grace, because I married two sisters at one time, and this the Torah was destined to prohibit.' They will then apply to Moses, saying, 'You take it and recite the Grace,' but Moses will say, 'I shall not recite the Grace because I did not merit to enter the land of Israel neither alive nor dead.' They will then say to Joshua, 'You take it and recite the Grace,' but he also will refuse, saying to them, 'I shall not recite the Grace, because I did not merit to have a son,' as it is written (I Chr. 7, 27) Nun, his son, and Joshua, his son. So they will turn unto David and say to him, 'You take it and recite the Grace.' Whereupon he will say, 'Yea, I shall recite the Grace and it befits me so to do,' as it is said (Ps. 11, 13) The cup of salvation will I lift up and on the name of the Lord will I call.'"

"The angel who has redeemed me from all harm[...]" (Genesis 48:16) Rabbi Yosei son of Chalafta said, sustenance is doubly difficult, like birth. Of birth it is written (Genesis 3:16) "In pain [עצב] shall you bear children", and of sustenance it is written (Genesis 3:17) "By toil [עצבון] shall you eat of it [the ground] all the days of your life." Rabbi Elazar and Rabbi Shmuel son of Nachman, Rabbi Elazar said, redemption is deduced from sustenance and sustenance from redemption. Just as redemption is doubled, so too is sustenance doubled. Just as sustenance is daily, so too is sustenance daily. Rabbi Shmuel son of Nachman said, and [sustenance] is greater than redemption, for redemption comes at the hand of an angel and sustenance at the hand of the Holy Blessed One. Redemption by the hand of an angel, "the angel who redeemed me" (Genesis 48:16), and sustenance by the hand of the Holy Blessed One, "open Your hand and satisfy all that lives" (Psalms 145:16). Rabbi Yehoshua son of Levi said, the victuals of man are as difficult as the splitting of the Sea of Reeds, as it says "to the One Who split the Sea of Reeds asunder" (Psalms 136:13) and it is written later "Who gives food to all flesh" (Psalms 145:25). "Bless the lads" (Genesis 48:16), these are Yehoshua and Gidon, for there it says "And it was when Yehoshua was in Yericho, and he lifted up his eyes and saw, and behold, a man stood over him... and he [the man] said 'No, but I am captain of the LORD's host and have just arrived...'" (Joshua 5:13-14). Rabbi Yehoshua in the name of Rabbi Chanina son of Yitzchak, he cried out from within his toenails, as it says "And he said, 'I am a captain of the LORD's host'" (ibid.) - a captain of the Lofty Ones am I, and every place that I am seen, the Holy Blessed One is seen. This is a sign that in every place that Rabbi Yosei was set[?], so too Rabbi would appear. "Now I have come" (ibid.) -- with Moshe your teacher I have come, rather that he was praying and said "Unless You go in the lead..." (Exodus 33:15) - I was unable to ascend above, but now that I have not done my mission, I was not able to descend below, that now I pray and say "Unless You go in the lead." Rather, be warned that you should not do as Moshe your teacher did with me, and I was swayed. "And may they be teeming multitudes [וידגו לרב] on the earth..." (Genesis 48:16). Just as the eye does not penetrate/rule over to see these fish [דגים], so your sons will not be seen/ruled over by the [evil] eye. So it is written, "The sons of Yosef spoke to Yehoshua... [saying, 'Why have you assigned as our portion a single allotment and a single district, seeing that we are a numerous people...']" (Joshua 17:14). He said to them, 'Are you not afraid of the [evil] eye?' [i.e. how can you boast of your numbers?]. They responded, 'This was our father's blessing for us, "they shall be teeming multitudes on the earth" (Genesis 48:16).' Just as these fish are only caught in the throat, so your sons will only be caught in the throat. "And they said to him, please say 'shibolet,' and he said 'sibolet'." (Judges 12:6). Just as these fish grow in water, and when one drop descends from above they accept it with thirst like one who had never tasted water in their life, so too Israel grow in the water of Torah, and when they hear one new word of Torah they accept it with thirst as one who had never heard a word of Torah in their life. Rabbi Levi said, the women of Israel became impregnated with sixty thousand foetuses in one night, and all were sent to the Nile, and they ascended [out of the Nile?] in the merit of Moshe, since Moshe said "Six hundred thousand are my feet of the people that I am within" (Numbers 11:21) -- they all went up to my feet. Rabbi Zacai....