Exodus 27:1

XXVII.
THE ALTAR OF BURNT OFFERING.

(1) Thou shalt make an altar. — Heb., the altar. It is assumed that a sanctuary must have an altar, worship without sacrifice being unknown. (See Exodus 5:1; Exodus 8:25; Exodus 12:27; Exodus 18:12; Exodus 20:24, &c.)

Of shittim wood. — This direction seems at first sight to conflict with those given in Exodus 20:24, where altars were required to be either of earth or of unhewn stone. But the explanation of the Jewish commentators is probably correct, that what was here directed to be made was rather an “altar-case” than an altar, and that the true altar was the earth with which, at each halt in the wilderness, the “case” of shittim wood covered with bronze was filled. (So Jarchi, Kalisch, and others.)

Foursquare. — Ancient altars were either rectangular or circular, the square and the circle being regarded as perfect figures. A triangular altar was discovered by Mr. Layard in Mesopotamia, but even this had a circular top. In Hebrew architecture and furniture curved lines were for the most part avoided, probably as presenting greater difficulties than straight ones.

The height thereof... three cubits. — A greater height would have made it difficult to arrange the victims upon the altar. Otherwise the notion of perfection in form would probably have led to the altar being a cube.