Exodus 30:2 in the World English Bible
Its length shall be a cubit, and its width a cubit. It shall be square, and its height shall be two cubits. Its horns shall be of one piece with it.
Context
1 And thou shalt make an altar to burn incense upon: of shittim wood shalt thou make it.
2 A cubit shall be the length thereof, and a cubit the breadth thereof; foursquare shall it be: and two cubits shall be the height thereof: the horns thereof shall be of the same.
3 And thou shalt overlay it with pure gold, the top thereof, and the sides thereof round about, and the horns thereof; and thou shalt make unto it a crown of gold round about.