Numbers 33:4
2 Moses recorded their departures according to their journeys, by the commandment of the Lord; now these are their journeys according to their departures. 3 They departed from Rameses in the first month, on the fifteenth day of the first month; on the day after the Passover the Israelites went out defiantly in plain sight of all the Egyptians. 4 Now the Egyptians were burying all their firstborn, whom the Lord had killed among them; the Lord also executed judgments on their gods. 5 The Israelites traveled from Rameses and camped in Sukkoth. 6 They traveled from Sukkoth, and camped in Etham, which is on the edge of the desert.
Wisdom of Solomon 18:12
10 But on the other side there sounded an ill according cry of the enemies, and a lamentable noise was carried abroad for children that were bewailed. 11 The master and the servant were punished after one manner; and like as the king, so suffered the common person. 12 So they all together had innumerable dead with one kind of death; neither were the living sufficient to bury them: for in one moment the noblest offspring of them was destroyed. 13 For whereas they would not believe any thing by reason of the enchantments; upon the destruction of the firstborn, they acknowledged this people to be the sons of God. 14 For while all things were in quiet silence, and that night was in the midst of her swift course,
Notes and References
"... Wisdom of Solomon 18:5-25 ... In the sixth contrast the Egyptian firstborn are destroyed but Israel is saved from the wrath of the destroyer in the desert. The section is divided into two parts marked off by the inclusions “destroyed / perished” (same word in Greek) in verses 5 and 19, and “experience / test” (the same word in Greek) in verses 20-25. 18:5-19 The events alluded to here are the killing of the Hebrew male children, the rescue of Moses, the slaughter of the Egyptian firstborn, and the drowning of Pharaoh’s army in the sea (Exodus 1:15-22; 2:1-10; 12:29; 14:21-31). The element of talion, already present in the biblical text, was widely recognized by readers of Exodus from an early time (compare Jubilees 48:14). “That night” (18:6) is the night of the first Passover (Exodus 12:21-27). 18:8 exemplifies the principle stated in 11:16. In the first half of 18:9 the author seems to have telescoped the events of Passover night and the reception of the law at Sinai (Exodus 24:7), while at the end of the verse he has the Israelites already anachronistically reciting the Hallel (Psalms 113-118). This final phrase is problematic and could also refer to the Israelites recalling the stories of the patriarchs and the promises made to them. But the statement was probably evoked as much by the literary need for a contrast with the desolate cries of the Egyptians (18:10) than by reading back contemporary events into the past. Verse 13 draws on Exodus 4:22-23 (compare Hosea 11:1). The statement goes beyond the actual text which is presumably being referred to, but throughout chapters 10-19 the Wisdom of Solomon routinely embellishes the biblical text for rhetorical effect ..."
Dunn, James D. G., and J. W. Rogerson Eerdmans Commentary on the Bible (p. 776) William B. Eerdmans Publishing Company, 2003