Here are a few passages from the Bible that
may relate to this sun event although it seems to my understanding of the tribulation time line the sun event referenced in the passages below will come much later:
Matthew 24:29http://www.biblegateway.com/passage/?book_id=47&chapter=24&version=31&context=chapterQuote:
29"Immediately after the distress of those days
" 'the sun will be darkened,
and the moon will not give its light;
the stars will fall from the sky,
and the heavenly bodies will be shaken.'
This one could be a match considering the military situation in the Middle East.
Luke 21:20-28http://www.biblegateway.com/passage/?book_id=49&chapter=21&version=31&context=chapterQuote:
20 "When you see Jerusalem being surrounded by armies, you will know that its desolation is near. 21 Then let those who are in Judea flee to the mountains, let those in the city get out, and let those in the country not enter the city. 22 For this is the time of punishment in fulfillment of all that has been written. 23 How dreadful it will be in those days for pregnant women and nursing mothers! There will be great distress in the land and wrath against this people. 24 They will fall by the sword and will be taken as prisoners to all the nations. Jerusalem will be trampled on by the Gentiles until the times of the Gentiles are fulfilled.
25 "There will be signs in the sun, moon and stars. On the earth, nations will be in anguish and perplexity at the roaring and tossing of the sea. 26 Men will faint from terror, apprehensive of what is coming on the world, for the heavenly bodies will be shaken. 27At that time they will see the Son of Man coming in a cloud with power and great glory. 28 When these things begin to take place, stand up and lift up your heads, because your redemption is drawing near."
Acts 2:17-21http://www.biblegateway.com/passage/?book_id=51&chapter=2&version=31Quote:
17 " 'In the last days, God says,
I will pour out my Spirit on all people.
Your sons and daughters will prophesy,
your young men will see visions,
your old men will dream dreams.
18 Even on my servants, both men and women,
I will pour out my Spirit in those days,
and they will prophesy.
19 I will show wonders in the heaven above
and signs on the earth below,
blood and fire and billows of smoke.
20 The sun will be turned to darkness
and the moon to blood
before the coming of the great and glorious day of the Lord.
21 And everyone who calls
on the name of the Lord will be saved.'
Revelation 6:12-17http://www.biblegateway.com/passage/?book_id=73&chapter=6&version=31Quote:
12 I watched as he opened the sixth seal. There was a great earthquake. The sun turned black like sackcloth made of goat hair, the whole moon turned blood red, 13 and the stars in the sky fell to earth, as late figs drop from a fig tree when shaken by a strong wind. 14 The sky receded like a scroll, rolling up, and every mountain and island was removed from its place.
15 Then the kings of the earth, the princes, the generals, the rich, the mighty, and every slave and every free man hid in caves and among the rocks of the mountains. 16 They called to the mountains and the rocks, "Fall on us and hide us from the face of him who sits on the throne and from the wrath of the Lam! 17 For the great day of their wrath has come, and who can stand?"
Once again, later in the tribulation time line:
Revelation 8:12http://www.biblegateway.com/passage/?book_id=73&chapter=8&version=31&context=chapterQuote:
12 The fourth angel sounded his trumpet, and a third of the sun was struck, a third of the moon, and a third of the stars, so that a third of them turned dark. A third of the day was without light, and also a third of the night.