Kings III 2:11

11 And the days which David reigned over Israel forty years; he reigned seven years in Chebron, and thirty-three years in Jerusalem.

Kings III 2:11 In-Context

9 But thou shalt by no means hold him guiltless, for thou art a wise man, and wilt know what thou shalt do to him, and shalt bring down his grey hairs with blood to the grave.
10 And David slept with his fathers, and was buried in the city of David.
11 And the days which David reigned over Israel forty years; he reigned seven years in Chebron, and thirty-three years in Jerusalem.
12 And Solomon sat on the throne of his father David, and his kingdom was established greatly.
13 And Adonias the son of Aggith came in to Bersabee the mother of Solomon, and did obeisance to her: and she said, Dost thou enter peaceably? and he said, Peaceably:

The Brenton translation of the Septuagint is in the public domain.