Midras Yesaya 54:7: Pirkei DeRabbi Eliezer & Aggadat Bereshit

THE RESURRECTION OF THE DEAD
"SEE now that I, even I, am he, and there is no God with me" (Deut. 32:89). Only the Holy One, blessed be He, said: "I am" in this world, and "I am" in the world to come; I am the one who redeemed Israel from Egypt, and I am the one who, in the future, will redeem them at the end of the fourth kingdom; therefore it is said, "I, even I, am he, and there is no God with me" (ibid.). Every nation who say that there is a second God, I will slay them as with a second death || which has no resurrection; and every nation who say that there is no second God, I will quicken them for the eternal life. And in the future I will slay those (first mentioned) and quicken these, therefore it is said, "I kill, and I make alive" (ibid.). I have wounded Jerusalem and her people on the day of My anger, and in great mercy I will heal them, therefore it is said, "I have wounded, and I will heal" (ibid.). Neither any angel nor any seraph will deliver the wicked from the judgment of Gehinnom, as it is said, "And there is none that can deliver out of my hand" (ibid.).

[2] Another interpretation:"And may the El Shaddai grant you mercy."As it is written in scriptures: "All the devout shall pray for this at the appropriate time (Psalm 32:6). For this, all the tribes shall pray, as it is said, 'And this is what their father said to them, etc.' (Genesis 49:28). At the appropriate time, when all the tribes went out from Jacob, he said to them, 'And to El Shaddai, etc.' (ibid. 49:1). With that same mouth that Joseph and Shimon did not recognize (Genesis 42:8), the Holy Spirit rested upon him and he began to prophesy in his prayer that all his sons would be present at the appropriate time, for he thought he had lost them, as it is said, 'And he sent for you their brother, etc.' (Genesis 43:29), referring to Joseph; 'And the other, etc.' (Genesis 42:24), referring to Shimon; and 'And Benjamin, etc.' (Genesis 43:15), as it is written. Therefore, it is said, 'All the devout shall pray for this at the appropriate time,' because when all the tribes went down to Egypt and turned their faces away, and he did not see any of them, he began to say, 'Perhaps they have joined with the nations and become one.' But the Holy One, blessed be He, said to him, 'that the rushing mighty waters not overtake him.' (Psalm 32:6). And who are these great waters? They are the nations, as it is said, 'Ah, the roar of many peoples, that roar as roars the sea, the rage of nations that rage as rage the mighty waters—' (Isaiah 17:12). Why do I have to suffer for a moment even though I may be sorry, but not forever, as it is written "For a small moment have I forsaken thee; But with great compassion will I gather thee." (Isaiah 54:7).