Midrash su Genesi 37:29

And the Lord brought darkness over the earth, and the lightning was flashing, and the thunder ‎was roaring, and the earth shook at the noise of the thunder and the great storm, and the ‎men were greatly alarmed and they knew not whither they should go. And the beasts and the ‎camels stood still, and when they were led they refused to go on, and when they were ‎smitten they lay down upon the ground. And the men said to each other: What is that God ‎hath done unto us, what are our sins and our transgressions that this had to come over us? ‎And one of them answered and said unto them: Peradventure on account of our sins in ‎afflicting this slave hath this evil befallen us this day. And now entreat him and urge him on to ‎forgive us, that we know on whose account this affliction hath come over us. And if the Lord ‎have mercy upon us, then we will know that all this hath happened unto us for the sin of ‎afflicting this slave. And they did so. And they entreated Joseph and begged him to forgive ‎them, saying: We have sinned against heaven and before thee, and therefore we implore ‎thee pray unto thy God to remove from us this death, for we have sinned against him. And ‎Joseph did according to their words, and he prayed unto the Lord, and the Lord hearkened ‎unto Joseph, and he removed from them the plague wherewith the Lord had visited the ‎Ishmaelites, on account of Joseph. And the beasts rose up from the ground and became ‎manageable and walked on, and the great storm subsided, and the earth became quiet, and ‎the men continued their journey towards Egypt. And the men knew that this affliction had ‎come over them on account of Joseph, and they said to each other: Behold, now we know ‎that for the sin of afflicting this slave, all that evil hath come over us. Come then and let us ‎consult what we shall do concerning him, for why should we expose ourselves further to such ‎a terrible plague. And one of them said: Verily he hath told unto us to bring him back unto his ‎father, and now let us carry him back to the place he will designate, and we will take from his ‎family the price that we paid for him and go our way. And one answered, saying: Thy counsel is ‎very wise but we cannot do accordingly; for we have gone a great distance from his place and ‎we cannot turn away from our road. And still another said unto them: This is the counsel we ‎will now follow without further delay. We are going down unto Egypt this day, and there we ‎will sell him for a high price, and thus we will be delivered from his evil. And they were all ‎pleased with these words, and they continued their journey unto Egypt, taking Joseph along ‎with them. And after the sons of Jacob had sold Joseph unto the Midianites, their hearts beat ‎within them for their brother and they repented of what they had done, and they searched ‎for him to bring him back but they could not find him. And Reuben returned unto the pit ‎wherein Joseph had been in order to take him out and return him unto his father, and he ‎stood by the pit crying: Joseph, Joseph, but he heard not a word in answer. And Reuben ‎exclaimed: Poor Joseph he must have died for fright, or he hath been killed by one of the ‎serpents.‎

And Reuben went down into the pit to search for Joseph, but he could not find him in the pit, ‎and he came out again. And Reuben rent his garments and he said: The child is not here and ‎how can I comfort my father concerning him, if he be dead? And Reuben went to his brothers ‎and he found them grieving for Joseph and consulting in what manner they were to comfort ‎their father concerning him. And Reuben said unto them: Behold I have come to the pit, but ‎Joseph was not in it, and now what shall we say to our father, for my father will hold me alone ‎accountable for the youth. And his brothers answered unto him: Thus have we done, and our ‎hearts ached afterwards by reason of our action, and now we are seeking for a pretext how to ‎comfort our father concerning our brother. And Reuben said unto them: What is it that you ‎have done, to bring down the gray head of our father with sorrow into the grave? Verily the ‎thing that you have done is not good. And Reuben took his seat in their midst, and all of them ‎arose and swore to each other not to disclose a word unto Jacob and they said: He who will ‎impart this to our father and his household or who will say a word concerning it to any of the ‎people of the land, we will all unite against him and kill him. And the sons of Jacob were afraid ‎of each other from the smallest to the greatest, and they never spoke a word concerning the ‎matter; but they kept it concealed in their hearts. And they sat down together to counsel, to ‎come to a conclusion as to what they would tell unto their father. And Issachar said unto them: ‎Here is an advice for you if it pleaseth you to act accordingly: Take ye Joseph’s coat and tear it ‎up, and slaughter a kid of the goats and dip the coat in its blood, and send it to our father. And ‎he will see it and say, an evil beast hath devoured him, and therefore the coat is torn and ‎bloody, and by doing this thing we will free ourselves from our father's reproaches. And the ‎words of Issachar pleased them well, and they agreed to act upon his advice. And they took ‎quickly Joseph’s coat and they tore it, and they killed a kid from the goats, and they dipped the ‎coat in its blood, and they trampled the coat in the dust. And they forwarded the coat to their ‎father through Naphtali, and they instructed him to speak according to these words: We had ‎gathered in the cattle, and when we reached a little ways beyond Shechem, we found this ‎coat on the road in the wilderness dipped in blood and covered with dust; and now recognize ‎the coat whether it be the coat of thy son or not.‎

And Reuven returned to the pit. Where was he? Rabbi Eliezer and Rabbi Yehoshua [disagree]. Rabbi Eliezer said from his sackcloth and fast, when he finished he returned and looked into the pit, as it is written "And Reuven returned to the pit". The Holy One of Blessing said: "there has never been a time ever when a person who sinned before me did teshuva. You were the first one to do teshuva, and [as a reward] I swear that your grandson will stand and open the way to teshuva. Who is this? Hoshea, as it says: "return Israel unto Hashem, your God". "And they took the striped coat and they slaughtered a goat" (Gen. 37:31). Why a goat? Because its blood is similar to human blood. "And they sent the cloak etc" (Gen. 37:32). Rabbi Yochanan said that the Holy One of Blessing said to Yehuda, 'you said to your father 'do you recognize it?' I swear that Tamar will say about you, "do you recognize it?" (Gen. 38:25). "He recognized it and said: 'it is my son's cloak."(Gen. 37:33) I don't know what I am seeing. "A wild animal must have eaten him!' (Gen. 37:33) Rav Huna said the Holy Spirit was on him, when he said he a wild animal - this was Potiphar's wife.