John Chrysostom
Simmachus expresses it more clearly: Behold, says He, I will make the shadow of the steps revert, by which it descended during the watch of Ahaz, and I will cause the sun to return ten steps; and the sun returned ten hours, descending gently down the steps. This was truly astounding: had He commanded the shadow to revert swiftly, it would not have been as remarkable, leading them to possibly believe it was merely a result of the sun's natural course, with no special significance. However, the quiet return made it evident that it was the work of the Almighty Sovereign of the universe. Observe that the miracle took place not on even ground, but on steps where the power of the Miracle Worker was clearly demonstrated.
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It occurred globally, and no one has ever witnessed or heard of a miracle comparable to this. Joshua commanded, Stand, sun, over Gabaon, and moon, over the valley of Aialon, and they stood still (Hab. 10:12). While this was indeed a remarkable sign, it did not indicate that the sun and moon paused of their own accord; rather, it revealed that there was a divine presence sustaining and orchestrating everything. To prevent the belief that the created order, along with the sun’s movement, halts by its own might, He quietly shifts the sun’s shadow and alters it at His will—not to bring harm upon creation, but to inspire awe and draw all to faith. The sun was bid to stand still for Joshua, yet God caused it to retreat, and Christ delayed its course, so that you might recognize its slowing was not inherent to the sun but the work of the Creator.