2 Chronicles 3:2

3:2 He began building on the second day of the second month of the fourth year of his reign.

2 Chronicles 27:8

27:8 He was twenty-five years old when he began to reign, and he reigned for sixteen years in Jerusalem.

2 Chronicles 31:7

31:7 In the third month they began piling their contributions in heaps and finished in the seventh month.