Matthew 27:45

Now from the sixth hour until the ninth hour there was darkness over all the land.

Mark 15:33

And when the sixth hour had come, there was darkness over the whole land until the ninth hour.

Luke 23:44

for the sun was darkened; and the curtain of the temple was torn in two.

Ephesians 1:9

he made known to us the mystery of his will according to his good pleasure, which he purposed in Christ,

Ephesians 1:11

also we have obtained an inheritance, having been predestined according to the purpose of him who works all things after the counsel of his will,

Hebrews 7:21

Those who formerly became priests took their office without an oath, but he became a priest with an oath through the One who said to him, "The Lord has sworn and will not change his mind, 'You are a priest forever.'"

Revelation 6:12

I looked when he opened the sixth seal, and there was a great earthquake; and the sun became black as sackcloth made of hair, and the whole moon became like blood;

Treasury of Scripture Knowledge

Summary

For this shall the earth mourn, and the heavens above be black: because I have spoken it, I have purposed it, and will not repent, neither will I turn back from it.

General references

Bible References

The heavens

Matthew 27:45
Now from the sixth hour until the ninth hour there was darkness over all the land.
Mark 15:33
And when the sixth hour had come, there was darkness over the whole land until the ninth hour.
Luke 23:44
for the sun was darkened; and the curtain of the temple was torn in two.
Revelation 6:12
I looked when he opened the sixth seal, and there was a great earthquake; and the sun became black as sackcloth made of hair, and the whole moon became like blood;

Because

Ephesians 1:9
he made known to us the mystery of his will according to his good pleasure, which he purposed in Christ,
Hebrews 7:21
Those who formerly became priests took their office without an oath, but he became a priest with an oath through the One who said to him, "The Lord has sworn and will not change his mind, 'You are a priest forever.'"

General references

Mark 13:24
"But in those days, after that tribulation, the sun will be darkened, and the moon will not give its light;