Isaiah 38:7

"And this shall be the sign unto thee from Jehovah, that Jehovah will do this thing that he hath spoken: behold, I will cause the shadow on the steps, which is gone down on the dial of Ahaz with the sun, to return backward ten steps. So the sun returned ten steps on the dial whereon it was gone down."

The account in 2Kings mentions that it was by the specific request of Hezekiah that this sign was given in preference to a sign in which the shadow on the dial would have advanced ten steps. We receive this as an astounding miracle, wrought by the power of God himself, a miracle that is in every sense equal to that of Beth-horon (Joshua 10:12-15). All that we wrote in connection with that miracle is also applicable here. See my commentary on Joshua, pp, 110-113.

We are not interested in the learned dissertations by men explaining `why they cannot believe this.' Since when did unbelief ever need an explanation? Christ has already explained it. "Men have loved darkness rather than light because their deeds are evil" (John 3:19). As to `how' God performed this wonder, no man may claim to know. Given the fact that it was God who intervened here, where is there any problem? Is anything too hard for God?

We fully agree with Douglas on this. He said, "The attempts to explain the going back of the shadow by a parhelion (mock sun), or by an eclipse, or refraction have been utterly unsuccessful. Those who do not reject the narrative as a falsehood, nor explain it as a conjurer's trick, must accept it as a miracle."[12]