The interpretation timeline
Exodus 2:14 Douay-Rheims

But he answered: Who hath appointed thee prince and judge over us? Wilt thou kill me, as thou didst yesterday kill the Egyptian? Moses feared, and said: How is this come to be known?

A.D. 99 – 1863 8 witnesses 9 excerpts

Patristic

before A.D. 750
99
A.D.
Clement of Rome Patristic
d. A.D. 99
“Every kind of honour and happiness was bestowed upon you, and then was fulfilled that which is written, "My beloved ate and drank, and was enlarged and became fat, and kicked." [Deuteronomy 32:15] Hence flowed emulation and envy, strife and sedition, persecution and disorder, war and captivity. So the worthless rose up against the honoured, those of no reputation against such as were renowned, the foolish against the wise, the young against those advanced in years. For this reason righteousness and peace are now far departed from you, inasmuch as every one abandons the fear of God, and has become blind in His faith, neither walks in the ordinances of His appointment, nor acts a part becoming a Christian, but walks after his own wicked lusts, resuming the practice of an unrighteous and ungodly envy, by which death itself entered into the world. [Wisdom 2:24] For thus it is written: "And it came to pass after certain days, that Cain brought of the fruits of the earth a sacrifice unto God; and Abel also brought of the firstlings of his sheep, and of the fat thereof. And God had respect to Abel and to his offerings, but Cain and his sacrifices He did not regard. And Cain was deeply grieved, and his countenance fell. And God said to Cain, Why are you grieved, and why is your countenance fallen? If you offer rightly, but do not divide rightly, have you not sinned? Be at peace: your offering returns to yourself, and you shall again possess it. And Cain said to Abel his brother, Let us go into the field. And it came to pass, while they were in the field, that Cain rose up against Abel his brother, and slew him." [Genesis 4:3-8] You see, brethren, how envy and jealousy led to the murder of a brother. Through envy, also, our father Jacob fled from the face of Esau his brother [Genesis 27:41-45]. Envy made Joseph be persecuted unto death, and to come into bondage. [Genesis 37:18-28] Envy compelled Moses to flee from the face of Pharaoh king of Egypt, when he heard these words from his fellow-countryman, "Who made you a judge or a ruler over us? Will you kill me, as you killed the Egyptian yesterday?" [Exodus 2:14] On account of envy, Aaron and Miriam had to make their abode without the camp. [Numbers 12:14-15] Envy brought down Dathan and Abiram alive to Hades, through the sedition which they excited against God's servant Moses. [Numbers 16:33] Through envy, David not only underwent the hatred of foreigners, but was also persecuted by Saul king of Israel. [1 Samuel 21:10-15]”
Source
407
A.D.
John Chrysostom Patristic
A.D. 347–407
“Wherefore also very foolishly did that Hebrew say to him, "Who made you a ruler and a judge over us?" What do you say? You see the actions and doubt of the title? Just as if one seeing a physician using the knife excellently well and succoring that limb in the body which was diseased, should say, "Who made you a physician and ordered you to use a knife?" "It is my art, my good sir, and your own ailment." So too did his knowledge make him (i.e., Moses) what he claimed to be. For ruling is an art, not merely a dignity, and an art above all arts.”
Source
“"By faith he forsook Egypt not fearing the wrath of the king; for he endured as seeing him who is invisible." What do you say? That he did not fear? And yet the Scripture says that when he heard, he "was afraid," and for this cause provided for safety by flight, and stole away and secretly withdrew himself. And afterwards he was exceedingly afraid. Observe the expressions with care: he said, "not fearing the wrath of the king" with reference to his presenting himself again. For it would have been [the part] of one who was afraid not to undertake again to defend his championship or to have any hand in the matter. That he did however again undertake it was [the part] of one who committed all to God. For he did not say, "He is seeking me and is busy [in the search], and I cannot bear again to engage in this matter."So even his flight was [an act of] faith. Why then did he not remain? [you say]. That he might not cast himself into a foreseen danger. For this finally would have been tempting [God]: to leap into the midst of dangers and say, "Let us see whether God will save me." And this the devil said to Christ, "Cast yourself down." Do you see that it is a diabolical thing to throw ourselves into danger without cause and for no purpose and to make trial of God, whether he will save us?”
Source

Scholastic

c. 1100 – 1500
1105
A.D.
Rashi Jewish
1040–1105
מי שמך לאיש WHO MADE THEE A PERSONAGE (lit., a man), and you are yet only a boy (Midrash Tanchuma, Shemot 10). הלהרגני אתה אמר lit. WILT THOU SPEAK IN ORDER TO SLAY ME — From this we may learn that he had killed him by the mere utterance of the “Shem Hamephorash” (Midrash Tanchuma, Shemot 10; Exodus Rabbah 1:30). ויירא משה AND MOSES FEARED — Explain it in its literal sense: he was afraid of Pharaoh. A Midrashic explanation is: he felt distressed because he saw that there were wicked men among the Israelites — common informers. He said: Since this is so (מעתה), perhaps they are not worthy to be delivered from bondage (Midrash Tanchuma, Shemot 10). אכן נדע הדבר SURELY THE THING IS KNOWN — Explain it in its literal sense: the fact that I have killed the Egyptian is known. A Midrashic explanation is: now there is known to me that matter about which I have been puzzled — how has Israel sinned more than all the seventy nations, that they should be oppressed by this crushing servitude? But now I see that they deserve this (Exodus Rabbah 1:30).”
Source
1270
A.D.
Ramban Jewish
1194–1270
“WILT THOU SPEAK TO KILL ME? “From here we learn that Moses had killed the Egyptian by merely pronouncing the Tetragrammaton.” or Shem Hamyuchad) is the Proper Name of G-d. It consists of four Hebrew letters, the utterance of which is now forbidden. It is translated here as the Eternal. By pronouncing this Name, Moses needed no weapon to accomplish his purpose of bringing about the deserved death of the Egyptian. Thus the language of Rashi, and it is also a Midrash of our Rabbis. But I wonder. If so, who told the wicked one [Moses] said to the wicked one, ‘Why do you smite thy fellow?’ that Moses killed him? Perhaps Moses placed his hands upon the Egyptian and cursed him in the Name of G-d, [and the Hebrew who was now quarrelling with Moses saw him doing that]. This would explain the term vayach (‘and he smote’ the Egyptian). (II Kings 19:35). Now just as in that case vayach does not signify a physical act of striking by hand but rather the inflicting of defeat by supernatural power, so also here in the case of Moses. (Bachya.) It may be that because the Egyptian had fallen dead before him [after he had pronounced the Tetragrammaton over him], Moses feared that they may report him and so he buried the Egyptian in the sand. The Hebrew who saw him doing that reckoned that Moses had caused [the Egyptian’s death somehow, even though he did not know that he had killed him by pronouncing the Tetragrammaton]. Perhaps he thought Moses had killed him by the sword, as he saw only the burial. In line with the plain meaning of Scripture, scholars say. that the expression, wilt thou ‘omer’ (speak), means “think,” since we find amirah (speaking) referring to the thought of the heart. I said in my heart; I say, that an untimely birth is better than he., 6:3. It is obvious that Ramban’s intent in selecting these two verses from the Book of Ecclesiastes is to show that the term amirah (saying) as such is equivalent to amirah b’leiv (speaking in one’s heart). Hence the Book of Ecclesiastes uses them interchangeably. But here there is no need for this, for [the intent of the Hebrew’s words to Moses] is as follows: “Who made thee a ruler and a judge over us? Is it because thou dost desire to kill me as thou didst kill the Egyptian that thou reprovest me and sayest, ‘Why smitest thou thy fellow?’” alludes to that which Moses had said in Verse 13: Why smitest thou thy fellow? The Hebrew thus said to Moses: “Is it because you desire to kill me as you killed the Egyptian that you reproved me by saying, ‘Why do you smite your fellow?’””
Source

Post-Reformation

c. 1650 – 1900
1771
A.D.
John Gill Reformed
1697–1771
“And he said, who made thee a prince and a judge over us?.... God had designed him for one, and so he appeared to be afterwards; but this man's meaning is, that he was not appointed by Pharaoh's order then, and so had nothing to do to interfere in their differences and quarrels; though Moses did not take upon him to act in an authoritative way, but to exhort and persuade them to peace and love, as they were brethren: intendest thou to kill me, as thou killedst the Egyptian? if this was Dathan, or however the same Hebrew that he had defended and rescued from the Egyptian, it was very ungenerous in him to upbraid him with it; or if that Hebrew had made him his confident, and acquainted him with that affair, as it was unfaithful to betray it, since it was in favour of one of his own people, it was ungrateful to reproach him with it: and Moses feared; lest the thing should be discovered and be told to Pharaoh, and he should suffer for it: this fear that possessed Moses was before he fled from Egypt, and went to Midian, not when he forsook it, and never returned more, at the departure of the children of Israel, to which the apostle refers, Heb 11:27 and is no contradiction to this: and said, surely this thing is known; he said this within himself, he concluded from this speech, that either somebody had seen him commit the fact he was not aware of, or the Hebrew, whose part he took, had through weakness told it to another, from whom this man had it, or to himself; for by this it seems that he was not the same Hebrew, on whose account Moses had slain the Egyptian, for then the thing would have been still a secret between them as before; only the other Hebrew this was now contending with must hereby come to the knowledge of it, and so Moses might fear, that getting into more hands it would come out, as it did; See Gill on Act 7:27. See Gill on Act 7:28. See Gill on Act 7:29.”
Source
1832
A.D.
Adam Clarke Methodist
1762–1832
“And Moses feared - He saw that the Israelites were not as yet prepared to leave their bondage; and that though God had called him to be their leader, yet his providence had not yet sufficiently opened the way; and had he stayed in Egypt he must have endangered his life. Prudence therefore dictated an escape for the present to the land of Midian.”
Source
1849
A.D.
1774–1849
“Feared. St. Paul, (Hebrews xi. 27,) is speaking of his leaving Egypt, at the head of the people, when he says, not fearing the fierceness of the king. Without being dismayed on this occasion, by the unexpected discovery of what he had done, (which was perhaps undesignedly made public by the Hebrew whom he had rescued) he resolves not to tempt God. (Haydock)”
Source
1863
A.D.
1796–1863
“This was done on a principle of natural justice in defence of an injured man. St. Stephen, however, intimates that Moses presumed that the Israelites knew him to be divinely appointed to protect them: ' ' He thought that bis brethren understood that God by his hand would save them : but they understood it not." Acts 7 : 26. lie had not yet received a special mission, but he judged from his providential de- liverance and high position, that be was called to rescue his brethren. They must have known bis history, and should have inferred from it that he was Divinely saved to be their deliverer.”
Source
Modern · 1953 →

The in-app commentary runs from the Fathers to the early-modern record, then stops — that's where the public-domain sources end, not where the reading does. For the modern reading, follow the sources directly.