three years they # 14_2CH_11_17 # So they strengthened the kingdom of Judah, and made Rehoboam the son of Solomon strong, three years: for three years they walked in the way of David and Solomon. 
three years they # 12_2KI_18_10 # And at the end of three years they took it: [even] in the sixth year of Hezekiah, that [is] the ninth year of Hoshea king of Israel, Samaria was taken.