Isaiah 50:3

“I clothe the heavens with blackness, &c.] With gross and thick darkness; perhaps referring to the three days’ darkness the Egyptians were in, (<021012>Exodus 10:12-23), or with thick and black clouds, as in tempestuous weather frequently; or by eclipses of the sun; there was an extraordinary instance of great darkness at the time of Christ’s crucifixion, (<402745>Matthew 27:45) and I make sackcloth their covering; that being black, and used in times of mourning; the allusion may be to the tents of Kedar, which were covered with sackcloth, or such like black stuff. The fall of the Pagan empire, through the power of Christ and his Gospel, is signified by the sun becoming black as sackcloth of…”

“heavens . . . blackness--another of the judgments on Egypt to be repeated hereafter on the last enemy of God's people (Exo 10:21). sackcloth-- (Rev 6:12).”

“I clothe the heavens with blackness - With the dark clouds of a tempest - perhaps with an allusion to the remarkable clouds and tempests that encircled the brow of Sinai when he gave the law. Or possibly alluding to the thick darkness which he brought over the land of Egypt (Exodus 10:21; Grotius). In the previous verse, he had stated what he did on the earth, and referred to the exhibitions of his great power there. He here refers to the exhibition of his power in the sky; and the argument is, that he who had thus the power to spread darkness over the face of the sky, had power also to deliver his people. I make sackcloth their covering - Alluding to the clouds. Sackcloth was a coarse and…”

“I clothe - When it is necessary to save my people, I cover them with thick and dark clouds black as sackcloth, Rev 6:12. Isaiah 50:4”

“50:3 Phenomena such as darkness and the wearing of clothes of mourning were associated with the day of the Lord (13:10; see study note on 2:5-22). The mention of darkness might allude to the plague of darkness in Egypt (Exod 10:21).”

“Exo 10:21; Psa 18:11, Psa 18:12; Mat 27:45; Rev 6:12 Isaiah 50:4”