Éxodo 27

Construct the altar with boards so that it is hollow. It is to be made just as you were shown on the mountain.

De tablas lo harás, hueco: de la manera que te fué mostrado en el monte, así lo harás.

Hollow with boards shalt thou make it: as it was shewed thee in the mount, so shall they make it.

You shall make it hollow with planks. They shall make it as it has been shown you on the mountain.