Had light in their dwellings - The sandstorm, if such were the cause, may not have extended to the district of Goshen; but the expression clearly denotes a miraculous intervention, whether accomplished or not by natural agencies.

They saw not one another - So deep was the obscurity, and probably such was its nature, that no artificial light could be procured; as the thick clammy vapors would prevent lamps, etc., from burning, or if they even could be ignited, the light through the palpable obscurity, could diffuse itself to no distance from the burning body. The author of the book of The Wisdom of Solomon 17:2-19, gives a fearful description of this plague. He says, "The Egyptians were shut up in their houses, the prisoners of darkness: and were fettered with the bonds of a long night. They were scattered under a dark veil of forgetfulness, being horribly astonished and troubled with strange apparitions; for neither might the corner that held them keep them from fear; but noises as of waters falling down sounded about them; and sad visions appeared unto them with heavy countenances. No power of the fire could give them light - only there appeared unto them a fire kindled of itself very dreadful; for being much terrified, they thought the things which they saw to be worse than the sight they saw not. For though no terrible thing did scare them, yet being scared with beasts that passed by, and hissing of serpents, they died for fear: for whether he were husbandman, or shepherd, or a laborer in the field, he was overtaken; for they were all bound with one chain of darkness. Whether it were a whistling wind, or a terrible sound of stones cast down, or a running that could not be seen of tripping beasts, or a roaring voice of most savage wild beasts, or a rebounding echo from the hollow mountains, these things made them to swoon for fear." See Psalm 78:49.

To this description nothing need be added except this circumstance, that the darkness, with its attendant horrors, lasted for three days.

All the children of Israel had light - By thus distinguishing the Israelites, God showed the Egyptians that the darkness was produced by his power; that he sent it in judgment against them for their cruelty to his people; that because they trusted in him they were exempted from these plagues; that in the displeasure of such a Being his enemies had every thing to fear, and in his approbation his followers had every thing to hope.

They saw not one another,.... Not only the luminaries of heaven were covered and beclouded with the darkness, so that they were of no use to them; but the fogs and vapours which occasioned it were so damp and clammy that they put out their fires, lamps, and candles, so that they could receive no benefit from them:

neither rose up any from his place for three days; from the place of his habitation, not being able to find the way to the door, or however not able to do any business abroad; and besides were quite amazed and confounded, supposing the course of nature was changed and all things going to a dissolution, their consciences filled with horror and terror and black despair, strange and terrible phantoms and apparitions presented to their minds, as the author of the book of Wisdom suggests,"No power of the fire might give them light: neither could the bright flames of the stars endure to lighten that horrible night.'' (Wisdom 17:5)and which is countenanced by what the psalmist says, who instead of this plague of darkness, takes notice of evil angels being sent among them, Psalm 78:49 that is, devils in horrible shapes represented to their minds, which dreadfully distressed and terrified them, so that they durst not stir and move from the place where they were:

but all the children of Israel had light in their dwellings; not only in the land of Goshen, but in all places where they were mixed with the Egyptians, as it is plain they were, from Exodus 10:23 so that they could go about their business, and perform it as at other times, and had now a fine opportunity of packing up their goods, and getting every thing ready for their departure, without being observed by the Egyptians. Doctor Lightfoot (k) thinks, that now they attended to the ordinance of circumcision, which had been generally neglected, and was necessary to their partaking of the passover, which in a few days was to be observed, and of which no uncircumcised person might eat, Exodus 12:48 and which he grounds upon Psalm 105:28, and this time was wisely taken for it, when the Egyptians could have no opportunity or advantage against them, because of their soreness by it; it may indeed be wondered at, that they did not take the advantage of the darkness the Egyptians were in, of getting out of the land, and going their three days' journey into the wilderness; but it was the will of God that they should not steal away privately, or go by flight as fugitives, but openly, and with the mighty hand and outstretched arm of God; besides, the Lord had not as yet wrought all the judgments he intended. In the fabulous expedition of Bacchus against the Indians, a story is told which seems to be taken from hence, that the Indians were covered with darkness, while those with Bacchus were in light all around them (l).

(k) Works, vol. 1. p. 707. (l) Vid. Huet. Quaest. Alnetan. l. 2. c. 13. sect. 12. p. 204.

They saw not one another, neither rose any from his place for three days: but all the children of Israel had light in their dwellings.

10:23 But the children of Israel had light in their dwellings - Not only in the land of Goshen, where most of them inhabited, but in the particular dwellings which in other places the Israelites had dispersed among the Egyptians, as it appears they had by the distinction afterwards appointed to be put on their door - posts. And during these three days of darkness to the Egyptians, if God had so pleased, the Israelites by the light which they had, might have made their escape, and have asked Pharaoh no leave; but God would bring them out with a high hand, and not by stealth or in haste.

10:21-29 The plague of darkness brought upon Egypt was a dreadful plague. It was darkness which might be felt, so thick were the fogs. It astonished and terrified. It continued three days; six nights in one; so long the most lightsome palaces were dungeons. Now Pharaoh had time to consider, if he would have improved it. Spiritual darkness is spiritual bondage; while Satan blinds men's eyes that they see not, he binds their hands and feet, that they work not for God, nor move toward heaven. They sit in darkness. It was righteous with God thus to punish. The blindness of their minds brought upon them this darkness of the air; never was mind so blinded as Pharaoh's, never was air so darkened as Egypt. Let us dread the consequences of sin; if three days of darkness were so dreadful, what will everlasting darkness be? The children of Israel, at the same time, had light in their dwellings. We must not think we share in common mercies as a matter of course, and therefore that we owe no thanks to God for them. It shows the particular favour he bears to his people. Wherever there is an Israelite indeed, though in this dark world, there is light, there is a child of light. When God made this difference between the Israelites and the Egyptians, who would not have preferred the poor cottage of an Israelite to the fine palace of an Egyptian? There is a real difference between the house of the wicked, which is under a curse, and the habitation of the just, which is blessed. Pharaoh renewed the treaty with Moses and Aaron, and consented they should take their little ones, but would have their cattle left. It is common for sinners to bargain with God Almighty; thus they try to mock him, but they deceive themselves. The terms of reconciliation with God are so fixed, that though men dispute them ever so long, they cannot possibly alter them, or bring them lower. We must come to the demand of God's will; we cannot expect he should condescend to the terms our lusts would make. With ourselves and our children, we must devote all our worldly possessions to the service of God; we know not what use he will make of any part of what we have. Pharaoh broke off the conference abruptly, and resolved to treat no more. Had he forgotten how often he had sent for Moses to ease him of his plagues? and must he now be bid to come no more? Vain malice! to threaten him with death, who was armed with such power! What will not hardness of heart, and contempt of God's word and commandments, bring men to! After this, Moses came no more till he was sent for. When men drive God's word from them, he justly gives them up to their own delusions.