God would blacken the sky during Jesus' crucifixion.
OT Prophecy NT Fulfillment
Amos 8:9
And it shall come to pass in that day, saith the LORD God, that I will cause the sun to go down at noon, and I will darken the earth in the clear of day.
Matthew 27:45–46
[45] Now from the sixth hour there was darkness over all the land unto the ninth hour.
[46] And about the ninth hour Jesus cried with a loud voice, saying, Eli, Eli, lama sabachthani? that is to say, My God, my God, why hast thou forsaken me?
Tanakh – Neviim – Amos 8:9
And it shall come to pass in that day, saith the L‑rd GOD, that I will cause the sun to go down at noon, and I will darken the earth in the clear day.
Hebrew OT – Amos 8:9
[8:9] וְהָיָה בַּיּוֹם הַהוּא נְאֻם אֲדֹנָי יְהוִה
וְהֵבֵאתִי הַשֶּׁמֶשׁ בַּצָּהֳרָיִם
וְהַחֲשַׁכְתִּי לָאָרֶץ בְּיוֹם אוֹר