Midrash sobre Êxodo 2:11

And it came to pass in those days, when Moses was grown up (Exodus 2:11). Moses was 20 years old at the time, and some say 40 years old.
"When Moses was grown up" - and does not everyone grow up? Rather, this tells you that he grew up [in a manner] unlike the whole world.
"He went out unto his brethren." This righteous man went out twice, and the Holy One Blessed is He wrote them one after another. "And he went out the second day" (Exodus 2:13)--this is two.
"And [he] looked on their burdens." What is, "And [he] looked?" For he would look upon their burdens and cry and say, "Woe is me unto you, who will provide my death instead of yours, for there is not more difficult labor than the labor of the mortar." And he would give of his shoulders [i.e. use his shoulders to] assist each one of them. Rabbi Eliezer the son of Rabbi Yose the Galilean said: [If] he saw a large burden on a small person and a small burden on a large person, or a man's burden on a woman and a woman's burden on a man, or an elderly man's burden on a young man and a young man's burden on an elderly man, he would leave aside his rank and go and right their burdens, and act as though he were assisting Pharaoh. The Holy One Blessed is He said: You left aside your business and went to see the sorrow of Israel, and acted toward them as brothers act. I will leave aside the upper and the lower [i.e. ignore the distinction between Heaven and Earth] and talk to you. Such is it written, " And when the LORD saw that [Moses] turned aside to see" (Exodus 3:4). The Holy One Blessed is He saw Moses, who left aside his business to see their burdens. Therefore, "God called unto him out of the midst of the bush" (ibid.).

And it came to pass in those days, when Moses was grown up (Exod. 2:11). Does not everything grow up? Do not men, beasts, animals, and birds all grow up? Why, then, is this said? It teaches us that he matured to an unusual degree. And he went out unto his brethren. This righteous man went out on two occasions, and the Holy One, blessed be He, recorded them. This is one. The verse He went out the second day (ibid. 2:13) indicates that he went out twice. And he looked upon their burdens. What is the meaning of And he looked? He looked at the men as they labored and cried out: “Woe is me, would that I could die for them.” Though there is no labor more arduous than working with clay, he would put his shoulders to the tasks and help each one of them. Hence it is written: And he looked upon their burdens.

And he saw an Egyptian smiting a Hebrew (Exod. 2:11). Who was this Egyptian? He was the father of the blasphemer, concerning whom it is said: And the son of the Israelitish woman blasphemed the Name (Lev. 24:11).¹¹He was the offspring of the rape of Shelomith, an Israelite woman, by an Egyptian. The Egyptian was beating the Hebrew who was the husband of Shelomith the daughter of Dibri. Why was he beating him? This overseer was in charge of one hundred and twenty men, whom he would dispatch to their labors every morning, at the time of the crowing of the cock. Since he was wont to send them to their respective tasks, he would enter their homes. He noticed that Shelomith the daughter of Dibri was perfectly beautiful, without blemish, and he was anxious to possess her. (So one morning,) at the time of the crowing of the cock, after he (the Egyptian) had sent the Hebrew from his home, he had intercourse with the Hebrew’s wife, who thought that it was her husband who was still with her. Her husband returned (from his tasks) and observed the Egyptian leaving the house. He asked her: “Did he perhaps touch you?” “Yes, he did,” she replied, “but I thought it was you.” When the taskmaster learned that the man was angered by what had occurred, he forced him to work harder and would beat him.