Exodus 10:22

Exo 10:22 And Moses stretched forth his hand toward heaven; and there was a thick darkness in all the land of Egypt three days:

Ver. 22. Thick darkness.] It was thick indeed, that might be felt: {a} so thick and foggy were the vapours that caused it.

{a} ψηλαφητον ακοτος. - Sept.

John Trapp, A Commentary or Exposition upon All the Books of the Old and New Testament (1647–1656) — public domain. Text from a community e-Sword module.

The ninth plague.

Geneva Bible (1599) marginal notes — public domain. Text via Bolls.life.

And Pharaoh called unto Moses,.... After the three days, as the Targum of Jonathan, when the darkness was over, or at least much diminished, fearing that still worse evils would befall him:

and said, go ye, serve the Lord, only let your flocks and your herds be stayed; stopped or remained behind, as a pledge and security of their return; and these the rather he was desirous of retaining, because of the great loss of cattle he had sustained by the murrain and boils upon them, and by the hail: let your little ones also go with you; this he had refused before, but now consents to it, which he thought was doing them a great favour, and that upon such terms they might be content to go.

John Gill's Exposition of the Whole Bible (1746–1763) — public domain (CC PDM 1.0). Text via the HelloAO Bible API.

22. And there was a thick darkness in all the land of Egypt three days — As all the plagues seem in some way connected with natural causes, this preternatural darkness is by many assigned to a sand-storm, such as accompanies the simoom or the chamaseen, miraculously increased in intensity. Neither of these winds are ever known to produce so deep a darkness as is here described, though they obscure the sun and cause a twilight gloom. The simoom, or samoom, is a hot parching wind, raising clouds of dust and sand, which give the whole air a reddish-yellow tinge, and make the sun at first look like a globe of blood, and then blot it wholly from view. It is painfully suffocating both to man and beast while it lasts, but it is of short duration, especially if extremely hot and violent, generally passing within half an hour. The chamaseen, or khamsin, is less hot and violent, but lasts two or three days at a time, occurring at frequent intervals during a period of fifty days before and after the vernal equinox, that is, during March and the first of April, which corresponds well with the time of the plague of darkness. It darkens the sun with clouds of sand, which fill the air like a yellow fog, or like a heavy storm of snow or hail; men and beasts hide themselves while it rages, the inhabitants taking refuge in the innermost apartments or in subterranean vaults. The streets are deserted, as in the night, and all business ceases. But all these characteristics must have been supernaturally intensified to produce the effects described in the text. Both the simoom and the chamaseen are local, and very limited in range, so that such a wind might have blows up the Nile valley and left Goshen, in the eastern part of the Delta, untouched.

Daniel D. Whedon (gen. ed.), Commentary on the Old and New Testaments (1874–1909) — public domain. Text from a community e-Sword module.

A thick darkness. Literally, "An obscurity of darkness." The phrase is intensitive.

The Pulpit Commentary (1880–1919), ed. H.D.M. Spence-Jones & Joseph S. Exell — public domain. Text from a community e-Sword module.

שלשת ימים denotes a triad of days. old French terziane; so, too, שבעת ימים everywhere it occurs denotes in old French a septaine of days (a period of seven days).

ויהי חשך אפלה … שלשת ימים — there was darkness of gloom when no man saw another during those three days, and there was moreover another period of three days’ darkness twice as thick as this when no man rose from his place: one who happened to be sitting when this second period of darkness began was unable to rise, and one who was then standing was unable to sit down. And why did He bring darkness upon them? Because there were wicked people amongst the Israelites of that generation who had no desire to leave Egypt, and these died during the three days of darkness so that the Egyptians might not see their destruction and say, “These, (the Israelites) too have been stricken as we have”. And a further reason is that the Israelites searched (the darkness came just in order that they might do this) and saw their (the Egyptians’) jewels, and when they were leaving Egypt and asked them for their jewels, and they replied, “We have none at all in our possession”, they answered them, “I have seen it in your house and it is in such and such a place” (cf. Midrash Tanchuma, Bo 1; Exodus Rabbah 14:3).

Rashi on the Tanakh — English translations: “The Judaica Press complete Tanach with Rashi, translated by A. J. Rosenberg” (CC BY 4.0); “Pentateuch with Rashi's commentary by M. Rosenbaum and A.M. Silbermann, 1929-1934” (public domain); “The Metsudah Tanach series, Lakewood, N.J” (CC BY 4.0); and “The Book of Joshua, Metsudah Publications, 1997” (CC BY 4.0). Text via Sefaria.