2 Chronicles (Author Compiled by Isaiah and Ezra from records of Nathan, Gad, Iddo, Ahijah, Jehu and others.)
3:8And he maketh the most holy house: its length is by the front of the breadth of the house twenty cubits, and its breadth twenty cubits, and he covereth it with good gold, to six hundred talents;
Original from The Bible Foundation - bf.org. They claim public domain status for their original text.