אַמָּ֨ה אָרְכּ֜וֹ וְאַמָּ֤ה רָחְבּוֹ֙ רָב֣וּעַ יִהְיֶ֔ה וְאַמָּתַ֖יִם קֹמָת֑וֹ מִמֶּ֖נּוּ קַרְנֹתָֽיו׃
Targum Jonathan on Exodus
A cubit its length, and a cubit its breadth; foursquare shall it be: and two cubits its height: and its upright horns shall be of it.