Keluaran 4:26

4:26 So the Lord ¹  let him alone. (At that time ²  she said, “A bridegroom of blood,” referring to ³  the circumcision.)

Keluaran 11:5

11:5 and all the firstborn in the land of Egypt will die, from the firstborn son of Pharaoh ⁴  who sits on his throne, to the firstborn son of the slave girl who is at her hand mill, and all the firstborn of the cattle.

[4:26]  ¹ tn Heb “he”; the referent (the Lord) has been specified in the translation for clarity.

[4:26]  ² tn Or “Therefore.” The particle אָז (’az) here is not introducing the next item in a series of events. It points back to the past (“at that time,” see Gen 4:26) or to a logical connection (“therefore, consequently”).

[4:26]  ³ tn The Hebrew simply has לַמּוּלֹת (lammulot, “to the circumcision[s]”). The phrase explains that the saying was in reference to the act of circumcision. Some scholars speculate that there was a ritual prior to marriage from which this event and its meaning derived. But it appears rather that if there was some ancient ritual, it would have had to come from this event. The difficulty is that the son is circumcised, not Moses, making the comparative mythological view untenable. Moses had apparently not circumcised Eliezer. Since Moses was taking his family with him, God had to make sure the sign of the covenant was kept. It may be that here Moses sent them all back to Jethro (18:2) because of the difficulties that lay ahead.

[11:5]  ⁴ sn The firstborn in Egyptian and Israelite cultures was significant, but the firstborn of Pharaoh was most important. Pharaoh was considered a god, the son of Re, the sun god, for the specific purpose of ruling over Re’s chief concern, the land of Egypt. For the purpose of re-creation, the supreme god assumed the form of the living king and gave seed which was to become the next king and the next “son of Re.” Moreover, the Pharaoh was the incarnation of the god Horus, a falcon god whose province was the heavens. Horus represented the living king who succeeded the dead king Osiris. Every living king was Horus, every dead king Osiris (see J. A. Wilson, “Egypt,” Before Philosophy, 83-84). To strike any firstborn was to destroy the heir, who embodied the hopes and aspirations of the Egyptians, but to strike the firstborn son of Pharaoh was to destroy this cardinal doctrine of the divine kingship of Egypt. Such a blow would be enough for Pharaoh, for then he would drive the Israelites out.