Passover, or Pesach in Hebrew, is the Jewish festival commemorating freedom from slavery in Egypt, the Exodus. The Haggadah, the text we read during the Passover Seder, the festive meal, dates back to the Mishnaic Era about 2000 years ago. Of course, Jewish fathers told over the story to their children in their own words since the actual Exodus almost 4000 years ago, based on the Torah’s command “And you shall tell (v’Higadata) your children on that day…” (Exodus 13:8).
The Haggadah was compiled by learned sages who were intimately familiar with the Bible and the Oral Law, which explains the written Torah. Despite this, Rabbi Yosef Haim Sonnenfeld points out an amazing contradiction between the Haggadah and the Bible itself.
First of all, in Jewish wisdom we do not simply accept the tension when ancient sources conflict or contradict. We delve into our tradition and figure out what is going on. Throughout Jewish history, our sages questioned apparent contradictions to flesh out what ancient sources and texts really meant and how to apply them. This is primary method used in the Talmud to expound the Bible and Mishnah.
Rabbi Sonnenfeld (Jerusalem, early 20th century) notes that in the Bible (Torah), Exodus 12:23 states:
וְעָבַ֣ר יְהֹוָה֘ לִנְגֹּ֣ף אֶת־מִצְרַ֒יִם֒ וְרָאָ֤ה אֶת־הַדָּם֙ עַל־הַמַּשְׁק֔וֹף וְעַ֖ל שְׁתֵּ֣י הַמְּזוּזֹ֑ת וּפָסַ֤ח יְהֹוָה֙ עַל־הַפֶּ֔תַח וְלֹ֤א יִתֵּן֙ הַמַּשְׁחִ֔ית לָבֹ֥א אֶל־בָּֽתֵּיכֶ֖ם לִנְגֹּֽף:
The Lord will pass to smite the Egyptians, and He will see the blood on the lintel and on the two doorposts, and the Lord will pass over the entrance, and He will not permit the destroyer to enter your houses to smite.
The verse implies that God sends a “destroyer”, most likely the angel of death, into homes to kill the firstborn. It also states that God will prevent his servant, the angel of death, from entering Jewish homes. In Jewish tradition, the devil or angel of death is not opposed to God, but is only a servant.

However, in the Haggadah the authors of the Haggadah riff on Exodus 12:12 וְעָֽבַרְתִּ֣י בְאֶֽרֶץ־מִצְרַ֘יִם֘ בַּלַּ֣יְלָה הַזֶּה֒ וְהִכֵּיתִ֤י כָל־בְּכוֹר֙ בְּאֶ֣רֶץ מִצְרַ֔יִם מֵֽאָדָ֖ם וְעַד־בְּהֵמָ֑ה וּבְכָל־אֱלֹהֵ֥י מִצְרַ֛יִם אֶֽעֱשֶׂ֥ה שְׁפָטִ֖ים אֲנִ֥י יְהֹוָֽה:
Thus it is said: “In that night I will pass through the land of Egypt, and I will smite every first-born in the land of Egypt, from man to beast, and I will carry out judgments against all the gods of Egypt, I the L‑rd.”
“I will pass through the land of Egypt,” I and not an angel;
“And I will smite every first-born in the land of Egypt,” I and not a seraph;
“And I will carry out judgments against all the gods of Egypt,” I and not a messenger;
“I- the L‑rd,” it is I, and none other!
The Haggadah is vehement that God’s smiting of the first born was direct, without any intermediary, and expounds a clear verse supporting this notion.
So what is going on?
Was the angel of death killing firstborn Egyptians or was God Himself? Or both?
Rabbi Sonnenfeld has an amazing answer: it depends on which firstborn we are talking about. He refers us to the Talmud in Bava Metzia 61b, which asks why the Torah mentions the Exodus along with the prohibition on loaning with interest (Lev 25:38) keeping honest weights (Lev 19:36) and with the dyed strings of the tzitzit (Numbers 15:41).
“אמר רבא למה לי דכתב רחמנא יציאת מצרים ברבית יציאת מצרים גבי ציצית יציאת מצרים במשקלות”
The Talmud answers: The Holy One, Blessed be He, said: I am He Who distinguished in Egypt between the drop of seed that became a firstborn and the drop of seed that did not become a firstborn, I am also He Who is destined to exact punishment from these
Mentioning Exodus reminds a potential sinner that God will discern when a man is violating these commandments secretly, even though no man could know. In all of these commands, a man could pass himself off as honest to his fellow men while only God would know his true treachery.
Only God Himself could know which drop of sperm fertilized the egg and led to this child. So only God himself could have identified and killed the firstborn sons when there was no other way to know. When a son was the first born to his mother, everyone would know, and the angel of death, the “Destroyer” could take those. But when the mother slept with other men, and conceived their sons as well, only God would know that these too were firstborns.
Egypt was a society were cuckoldry was commonplace. When we studied the Book of Exodus, we learned from the temptation of Joseph that it was accepted for married people, both men and women, to sleep with their slaves. It was common that a married woman could become pregnant from another man. Of course, she did not admit or advertise this fact, but hid it.
It is worth nothing that despite being enslaved in Egypt, a society which normalized open marriage and adultery, the Jewish women were steadfast to their husbands. Our sages state that the loyalty of the Jewish women is what saved our entire nation.
However, when God Himself smote the firstborn Egyptians, the sons of cuckoldry died as well. Even then, the Egyptians did not admit their adultery. See Exodus 12:33 “So the Egyptians took hold of the people to hasten to send them out of the land, for they said, “We are all dying”. Rashi (a prolific rabbi in France almost 1000 years ago) comments, based on the ancient Medrash: They said, Not according to Moses’ decree is this what has happened for he said (Ex 10:5) “And every firstborn shall die”, and here all the ordinary people are dead, five or ten in one house (citing Mekhilta d’Rabbi Yishmael 12:33).
Since Moses had said only a firstborn would die, when the Egyptians saw multiple sons dying they assumed they were all doing to die, and rushed the Jews out of Egypt. The actual cause of multiple dead in each house was cuckoldry. The Ibn Ezra (Spain, 900 years ago) points out that the first verb in the verse “took hold” has a feminine prefix. One can theorize that the wives of Egypt had some certainty about which of their sons were from their husbands and which were from adultery, and realized that their game would be up. They urged the Egyptian men and officials to rush the Jews out because non firstborns were dying too.
So yes, the angel of death killed the firstborn sons – but only the ones who were the firstborn of their mother. God Himself, knowing every detail of the Egyptian cuckoldry, was needed to kill the sons of adultery. The Jewish women had not engaged in cuckolding their husbands, and did not need protection from God. However, God commanded the Jews to apply the blood of the Paschal lamb to the door posts to block the angel of death, who was empowered to kill regular firstborns.
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It is interesting to note that our ancient sages, thousands of years ago, were familiar with the reality that some married women would also get pregnant from other men and conceal this. This fact was of course deeply hidden in those generations, and is only recently being exposed through the increase in genetic testing and through women admitting such behavior because the consequences are few.
Our rabbis, through the study of the Bible and the world, managed to understand deep secrets in female nature. We would do well to pay attention to our forefathers and learn from them.