King James Version (KJV)
And the altar {shall be} twelve {cubits} long, twelve broad, square in the four squares thereof.
Modern English
The altar hearth shall be twelve cubits long by twelve wide, square in its four sides.
Hebrew
והאראיל וְהָאֲרִיאֵ֗ל שְׁתֵּ֤ים עֶשְׂרֵה֙ אֹ֔רֶךְ בִּשְׁתֵּ֥ים עֶשְׂרֵ֖ה רֹ֑חַב רָב֕וּעַ אֶ֖ל אַרְבַּ֥עַת רְבָעָֽיו׃
vhʾrʾyl vhaʾariyʾel shteym ʿeshreh ʾorek bishteym ʿeshreh roḥab rabvʿa ʾel ʾarbaʿat rbaʿayv