2 Chronicles 9:13 in the King James Version
Now the weight of gold that came to Solomon in one year was six hundred and threescore and six talents of gold;
Context
12 King Solomon gave to the queen of Sheba all her desire, whatever she asked, more than that which she had brought to the king. So she turned and went to her own land, she and her servants.
13 Now the weight of gold that came to Solomon in one year was six hundred sixty-six talents of gold,
14 in addition to that which the traders and merchants brought. All the kings of Arabia and the governors of the country brought gold and silver to Solomon.