2 Kings 20:11

And Isaiah the prophet cried unto the Lord. — Thus the sign is evidently regarded by the historian as something directly involving the Divine agency, i.e., as a miracle.

He brought... Ahaz. — Literally, and he (i.e., Jehovah) made the shadow return on the steps, which it had descended in the steps of Ahaz, backward ten steps. On the question of how it was done, a good many opinions have been expressed, e.g., by means of a mock sun, a cloud of vapour, an earthquake, a contrivance applied by Isaiah (!) to the sun-dial, &c.

Ephrem Syrus, and other church fathers, believed that the sun receded in his celestial path; but it is not said that the sun went back, but the shadow. (Isaiah 38:8 says “the sun returned,” by a perfectly natural usus loquendi.) Keil assumes “a wondrous refraction of the sun’s rays effected by God at the prayer of Isaiah.” Professor Birks and Mr. Cheyne agree with this, assuming, further, that the refraction was local only. (See 2 Chronicles 32:31.) Thenius, after arguing at length in favour of an eclipse (that of September 26th. 713 B.C., which, however, will not harmonise with the Assyrian chronology), says: “Notwithstanding all this, I do not insist upon the suggested explanation, but I attach myself, with Knobel and Hitzig, to the mythical conception of the narrative.” “That the sign was granted, and that it was due to the direct agency of Him who ordereth all things according to His Divine will, is certain. How it was effected the narrative does not in any way disclose” (the Editor). Ewald and others wish to see in the retrogression of the shadow a token that “Hezekiah’s life-limit was to go back many years;” but the prophet gave the king is choice whether the shadow should go forward or backward.