Ezekiel 43:13

And these are the measures of the altar by the cubit of a cubit and a span, the cavity [shall be] a cubit deep, and a cubit shall be the breadth, and the border on the rim of it round about shall be a span: and this [shall be] the height of the altar

And these are the measures of the altar after the cubits: The cubit is a cubit and an hand breadth; even the bottom shall be a cubit, and the breadth a cubit, and the border thereof by the edge thereof round about shall be a span: and this shall be the higher place of the altar.

“These are the measurements of the altar by cubits (the cubit is a cubit and a hand width): the bottom shall be a cubit, and the width a cubit, and its border around its edge a span; and this shall be the base of the altar.