Exodus 7
Moses Given Divine Authority Over Pharaoh 1–7
The Sign of the Rod 8–13
The First Plague: Water Turns to Blood 14–25
Bible text: American Standard Version (1901) · Public domain
Study Notes for Exodus 7
Verse 1
I have made thee a god to Pharaoh — Elohim here marks Moses as the one who speaks and acts with the LORD's authority before the king. Aaron 'shall be thy prophet' (navi), the spokesman. The arrangement was given at the burning bush: 'he shall be to thee instead of a mouth, and thou shalt be to him instead of God' (Ex 4:16).
Verse 3
I will harden Pharaoh's heart — Qashah, to make hard. The LORD had said at the beginning, 'I will harden his heart, that he shall not let the people go' (Ex 4:21). With it he promises to 'multiply my signs and my wonders' (otot, mopheth) in Egypt. Paul cites the purpose: 'that I might shew my power in thee' (Rom 9:17).
Verse 4
mine armies — Tsiv'ot, hosts. Israel is the LORD's host, and the verse closes in Ex 12:41: 'all the hosts of the LORD went out from the land of Egypt'. The LORD says he will 'lay my hand upon Egypt' and bring his people out 'by great judgments' (shephatim), the word for sentences of a judge.
Verse 5
the Egyptians shall know that I am the LORD — The refrain recurs at the Red Sea: 'that the Egyptians may know that I am the LORD' (Ex 14:4; compare 14:18). To Israel the same knowledge is promised in Ex 6:7. At the last plague the LORD says, 'against all the gods of Egypt I will execute judgment: I am the LORD' (Ex 12:12).
Verse 7
fourscore years old… fourscore and three — Moses was forty when 'it came into his heart to visit his brethren' (Acts 7:23) and eighty after 'forty years were expired' in the wilderness (Acts 7:30). He died at 120 with his 'natural force' unabated (Deut 34:7), Aaron at 123 (Num 33:39).
Verse 11
the wise men and the sorcerers — Pharaoh calls 'wise men' (chakamim), 'sorcerers' (mekashshefim) and 'magicians' (chartummim), the last being the class he had called in Joseph's day, when 'there was none that could interpret' his dream (Gen 41:8). 'Enchantments' is lahat, a blaze or covert magic. Paul names two, 'Jannes and Jambres', who 'withstood Moses' (2 Tim 3:8).
Verse 12
Aaron's rod swallowed up their rods — The rods become tanninim, serpents, the word of the sign promised in v.9. The first sign given to Moses used nachash (Ex 4:3), and v.15 recalls it with that word. 'Swallowed up' is bala: Aaron's rod takes in every one of theirs.
Verse 13
he hardened Pharaoh's heart — The verb is chazaq, to be strong, in the plain stem, the same as in v.22 ('was hardened'). In v.3 the LORD says 'I will harden' (qashah), and v.14 uses a third word, kaved, heavy. The verse ends 'as the LORD had said', pointing back to Ex 4:21 and v.3.
Verse 14
Pharaoh's heart is hardened — Kaved, literally heavy, the third of the words used in this chapter for the king's heart (vv.3, 13, 14). 'He refuseth' is me'en, he declines. The demand to 'let the people go' (shalach) is the one given at Ex 5:1. The LORD announces the refusal to Moses before the first plague begins.
Verse 15
by the river's brink — The Nile (ye'or) and its 'brink' (saphah) are the same words as in Ex 2:3, where the child Moses is laid 'in the flags by the river's brink'. Ezekiel quotes Pharaoh: 'My river is mine own, and I have made it for myself' (Ezek 29:3). Moses is to meet him in the morning, rod in hand.
Verse 17
In this thou shalt know that I am the LORD — Pharaoh had said, 'Who is the LORD, that I should obey his voice to let Israel go? I know not the LORD' (Ex 5:2). The LORD answers with the word 'know'. He says he will 'smite with the rod that is in mine hand', though it is Aaron's hand that stretches it out (v.19). Ps 105:29 recounts it.
Verse 19
upon their streams, upon their rivers, and upon their ponds — Four terms for water are named: neharot (streams), ye'orim (rivers, the Nile's channels), agam (ponds) and miqveh (pools). The 'vessels of wood' and 'vessels of stone' are the containers in which water was held. Ps 78:44 says of the plague that their 'floods' could not be drunk; Rev 16:4 turns rivers and fountains to blood.
Verse 22
the magicians of Egypt did so — 'Enchantments' here is lat, covered or secret arts, a different word from lahat in v.11; lat returns in 8:7 and 8:18. Pharaoh's heart 'was hardened' (chazaq, as in v.13), and he 'turned and went into his house, neither did he set his heart to this also' (v.23).
Verse 25
seven days were fulfilled — The verse counts seven full days 'after that the LORD had smitten the river' (nakah, the verb of v.17). The next word to Moses begins the following plague: 'Go unto Pharaoh' (Ex 8:1). Ps 78:44 sets the turning of the rivers to blood first among the signs it recounts.