Isaiah 38:8
Behold, I will bring again the shadow of the degrees, which is gone down in the sun dial of Ahaz, ten degrees backward. So the sun returned ten degrees, by which degrees it was gone down.
Cross-reference
In Isaiah 7:11, Ahaz is offered a sign but refuses; here Hezekiah receives one — contrasting responses to divine offers.
Joshua 10:12-14 recounts the sun standing still — another miraculous alteration of celestial movement, paralleling the shadow reversing here.
2 Kings 20:11 directly describes the shadow going back ten steps, the same event as this verse.
2 Chronicles 32:24 summarizes Hezekiah's prayer and the sign given, a parallel account of this event.
In Joshua 10:13, the sun stands still for Joshua's battle — both are solar miracles showing God's control over celestial bodies.
2 Kings 20:9 is the parallel account of the same sign — the shadow going back on the stairway of Ahaz.
In Habakkuk 3:11, the sun and moon stand still in God's battle — a similar depiction of divine power over the sun's motion.
2 Chronicles 32:31 refers to the envoys' inquiry about the sign that happened, showing its lasting notoriety.