Exodus 8:21-22

8:21 If you do not release ¹  my people, then I am going to send ²  swarms of flies ³  on you and on your servants and on your people and in your houses. The houses of the Egyptians will be full of flies, and even the ground they stand on. ⁴  8:22 But on that day I will mark off ⁵  the land of Goshen, where my people are staying, ⁶  so that no swarms of flies will be there, that you may know that I am the Lord in the midst of this land. ⁷ 

Exodus 17:12

17:12 When ⁸  the hands of Moses became heavy, ⁹  they took a stone and put it under him, and Aaron and Hur held up his hands, one on one side and one on the other, ¹⁰  and so his hands were steady ¹¹  until the sun went down.

[8:21]  ¹ tn The construction uses the predicator of nonexistence – אֵין (’en, “there is not”) – with a pronominal suffix prior to the Piel participle. The suffix becomes the subject of the clause. Heb “but if there is not you releasing.”

[8:21]  ² tn Here again is the futur instans use of the participle, now Qal with the meaning “send”: הִנְנִי מַשְׁלִיחַ (hinni mashliakh, “here I am sending”).

[8:21]  ³ tn The word עָרֹב (’arov) means “a mix” or “swarm.” It seems that some irritating kind of flying insect is involved. Ps 78:45 says that the Egyptians were eaten or devoured by them. Various suggestions have been made over the years: (1) it could refer to beasts or reptiles; (2) the Greek took it as the dog-fly, a vicious blood-sucking gadfly, more common in the spring than in the fall; (3) the ordinary house fly, which is a symbol of Egypt in Isa 7:18 (Hebrew זְבוּב, zÿvuv); and (4) the beetle, which gnaws and bites plants, animals, and materials. The fly probably fits the details of this passage best; the plague would have greatly intensified a problem with flies that already existed.

[8:21]  ⁴ tn Or perhaps “the land where they are” (cf. NRSV “the land where they live”).

[8:22]  ⁵ tn Or “distinguish.” וְהִפְלֵיתִי (vÿhifleti) is the Hiphil perfect of פָּלָה (palah). The verb in Hiphil means “to set apart, make separate, make distinct.” God was going to keep the flies away from Goshen – he was setting that apart. The Greek text assumed that the word was from פָּלֵא (pale’), and translated it something like “I will marvelously glorify.”

[8:22]  ⁶ tn The relative clause modifies the land of Goshen as the place “in which my people are dwelling.” But the normal word for “dwelling” is not used here. Instead, עֹמֵד (’omed) is used, which literally means “standing.” The land on which Israel stood was spared the flies and the hail.

[8:22]  ⁷ tn Or “of the earth” (KJV, ASV, NAB).

[17:12]  ⁹ tn Literally “now the hands of Moses,” the disjunctive vav (ו) introduces a circumstantial clause here – of time.

[17:12]  ¹⁰ tn The term used here is the adjective כְּבֵדִים (kÿvedim). It means “heavy,” but in this context the idea is more that of being tired. This is the important word that was used in the plague stories: when the heart of Pharaoh was hard, then the Israelites did not gain their freedom or victory. Likewise here, when the staff was lowered because Moses’ hands were “heavy,” Israel started to lose.

[17:12]  ¹¹ tn Heb “from this, one, and from this, one.”

[17:12]  ¹² tn The word “steady” is אֱמוּנָה (’emuna) from the root אָמַן (’aman). The word usually means “faithfulness.” Here is a good illustration of the basic idea of the word – firm, steady, reliable, dependable. There may be a double entendre here; on the one hand it simply says that his hands were stayed so that Israel might win, but on the other hand it is portraying Moses as steady, firm, reliable, faithful. The point is that whatever God commissioned as the means or agency of power – to Moses a staff, to the Christians the Spirit – the people of God had to know that the victory came from God alone.