'Stairs' in the Bible

The entrance to the bottom level of side rooms was on the south side of the temple; stairs went up to the middle floor and then on up to the third floor.

Isaiah the prophet called out to the Lord, and the Lord made the shadow go back ten steps on the stairs of Ahaz.

Look, I will make the shadow go back ten steps on the stairs of Ahaz." And then the shadow went back ten steps.