Matthew 27:45

Now from noon until three o'clock in the afternoon there was darkness over all the land.

Mark 15:33

And when it became noon there was darkness over the entire land until three o'clock in the afternoon.

Luke 23:44

Now when it was about twelve o'clock noon, darkness came over all the land until three o'clock in the afternoon, for

Ephesians 1:9

in doing what He intended through Christ, to make known to us His secret plan, according to what pleased Him.

Ephesians 1:11

It is in [fellowship with] Christ that we [Jewish Christians] also were selected as [God's] inheritance [i.e., to receive His never ending blessings], having been predetermined according to the plan of God, who works out everything in harmony with what He wants.

Hebrews 7:21

(for [Levitical] priests were appointed without [God] taking [such] an oath, but Christ was appointed with an oath by God when He said to Him [Psa. 110:4], "The Lord made a vow and will not change His mind [when He said], 'You are a priest forever')."

Revelation 6:12

Then I looked as the Lamb broke open the sixth seal, and there [I saw] a great earthquake; the sun turned as black as sackcloth made out of [goat] hair, and the entire moon turned [as red] as 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 noon until three o'clock in the afternoon there was darkness over all the land.
Mark 15:33
And when it became noon there was darkness over the entire land until three o'clock in the afternoon.
Luke 23:44
Now when it was about twelve o'clock noon, darkness came over all the land until three o'clock in the afternoon, for
Revelation 6:12
Then I looked as the Lamb broke open the sixth seal, and there [I saw] a great earthquake; the sun turned as black as sackcloth made out of [goat] hair, and the entire moon turned [as red] as blood.

Because

Ephesians 1:9
in doing what He intended through Christ, to make known to us His secret plan, according to what pleased Him.
Hebrews 7:21
(for [Levitical] priests were appointed without [God] taking [such] an oath, but Christ was appointed with an oath by God when He said to Him [Psa. 110:4], "The Lord made a vow and will not change His mind [when He said], 'You are a priest forever')."

General references

Mark 13:24
"But after those days of terrible trouble [i.e., the next major event on God's calendar will be], the sun will become dark, and [therefore] the moon will not [be able to] shed its [reflected] light,