Isaiah 30:26

Isaiah makes a statement that may elaborate on the role of the sun in the Day of the Lord. Most sixth graders can easily enough deduce the meaning of “the light of the moon will be as the light of the sun.” The moon reflects the sun's light, so if the sun were to increase in strength sevenfold, the moon's light would increase commensurately. While some folk interpret the increase in the sun's brightness to be symbolic, relating it to Christ's radiance and such, a literal meaning is more pertinent.

A conventional view of the sun is that is it a “main sequence” star. Astronomers classify stars on a continuum based on size and heat, both of which relate to internal characteristics of a star. Some are red, some white, some small, some big, some hotter than others. Average stars are classified in the “main sequence.” In the past, the sun was considered main sequence, that is, as stars go, pretty much as an average Joe.

More recently, however, scientists who study these things have come to view the sun as at least a mildly variable star. A variable star is usually not main sequence. It is one that, for any number of reasons, fluctuates in brightness. One reason for this fluctuation can be the internal functioning in the star. These stars expel large amounts of matter, usually in the form of gas, and with it, heat, light, and what is called solar wind. When it expels gas and solar wind, as in the coronal mass ejection of 1989, it not only affects brightness and heat, but it plays havoc with the earth's magnetic fields. It is becoming apparent, too, that this disruption can, in turn, trigger seismic and volcanic activity.

How disruptive is disruptive? Well, the coronal mass ejection of 1989 turned out the lights in large areas of northeast America for days. A similar event in 2012 was absolutely massive, but missed the earth. If a major flair or coronal mass ejection came close to the earth, it could well lead to the levels of destruction we read of in Isaiah 30 and Revelation 8, 16, and 18.

What a difference can a single day bring? Lika Guha-thakurta, a NASA scientist, writes in NASA Science News:

The sun . . . is a variable star. But it looks so constant. . . . That's only a limitation of the human eye. Modern telescopes and spacecraft have penetrated the sun's blinding glare and found a maelstrom of unpredictable turmoil. Solar flares explode with the power of a billion atomic bombs. Clouds of magnetized gas . . . big enough to swallow planets break away from the stellar surface. Holes in the sun's atmosphere spew million mile-per-hour gusts of solar wind. And those are the things that can happen in just one day.

Here are a few of the many scriptures that might refer to intense solar activity during the Day of the Lord (or even during the Tribulation):

» Deuteronomy 32:22: Intriguingly, in the Song of Moses, God refers to His use of heat as He punishes apostate Israel. This passage describes an extremely intense, penetrating fire.

For a fire is kindled by My anger, and it burns to the depths of Sheol, devours the earth and its increase, and sets on fire the foundations of the mountains. [ESV]

» Isaiah 11:15: Here, God says He will

. . . utterly destroy
the tongue of the Sea of Egypt,
and will wave His hand over the River
with His scorching breath. . . . [ESV]

» II Peter 3:7: Peter's comments here may refer to the Day of the Lord.

But by the same word the heavens and earth that now exist are stored up for fire, being kept until the day of judgment and destruction of the ungodly. [ESV]

Charles Whitaker
What a Difference a Day Makes