2 Chronicles 3:1-4

So Solomon broke ground, launched construction of the house of GOD in Jerusalem on Mount Moriah, the place where GOD had appeared to his father David. The precise site, the threshing floor of Araunah the Jebusite, had been designated by David. He broke ground on the second day in the second month of the fourth year of his rule. These are the dimensions that Solomon set for the construction of the house of God: ninety feet long and thirty feet wide. The porch in front stretched the width of the building, that is, thirty feet; and it was thirty feet high.