2 Kings 20:8-11

Verse 8

What shall be the sign - He wished to be fully convinced that his cure was to be entirely supernatural; and, in order to this, he seeks one miracle to prove the truth of the other, that nothing might remain equivocal.
Verse 11

He brought the shadow ten degrees backward - We cannot suppose that these ten degrees meant ten hours; there were ten divisions of time on this dial: and perhaps it would not be right to suppose that the sun went ten degrees back in the heavens, or that the earth turned back upon its axis from east to west, in a contrary direction to its natural course. But the miracle might be effected by means of refraction, for a ray of light we know can be varied or refracted from a right line by passing through a dense medium; and we know also, by means of the refracting power of the atmosphere, the sun, when near rising and setting, seems to be higher above the horizon than he really is, and, by horizontal refraction, we find that the sun appears above the horizon when he is actually below it, and literally out of sight: therefore, by using dense clouds or vapors, the rays of light in that place might be refracted from their direct course ten, or any other number of degrees; so that the miracle might have been wrought by occasioning this extraordinary refraction, rather than by disturbing the course of the earth, or any other of the celestial bodies.

The dial of Ahaz - See the note on 2Kgs 9:13, and the observations and diagram at the end of this chapter.
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