הִנְנִ֣י מֵשִׁ֣יב אֶת־צֵ֣ל הַֽמַּעֲל֡וֹת אֲשֶׁ֣ר יָרְדָה֩ בְמַעֲל֨וֹת אָחָ֥ז בַּשֶּׁ֛מֶשׁ אֲחֹרַנִּ֖ית עֶ֣שֶׂר מַעֲל֑וֹת וַתָּ֤שָׁב הַשֶּׁ֙מֶשׁ֙ עֶ֣שֶׂר מַעֲל֔וֹת בַּֽמַּעֲל֖וֹת אֲשֶׁ֥ר יָרָֽדָה׃ (ס)
看哪，我要使亞哈斯日晷上隨著太陽已經下移的日影，往後退十級。»於是太陽在它已經下移的日晷級數上，往回退了十級。
Rashi
the shade of the steps A sort of steps made opposite the sun to determine the hours of the day, like the clocks (horloge in French) that craftsmen make (sectarians make [Parshandatha]).
Rashi
that it went down It hastened to go down, and the day was shortened by ten hours on the day Ahaz died, in order that they should not eulogize him, and now they went backwards on the day Hezekiah recovered, and ten hours were added to the day.