Isaiah 38:7-8

CLV^{(i) 7} `"And this is the sign for you from Yahweh, that Yahweh will do this thing which He has spoken." ⁸ Behold Me reversing the shadow on the stairs which descends on the stairs of the upper chamber of Ahaz, and the sun, backward ten stairs."'And the sun is returning ten stairs, on the stairs which the shadow had descended."