Zechariah 7:2-3

2The people of Bethel had sent Sharezer and Regemmelech, along with their attendants, to seek the Lord’s favor.

3They were to ask this question of the prophets and the priests at the Temple of the Lord of Heaven’s Armies: “Should we continue to mourn and fast each summer on the anniversary of the Temple’s destruction, as we have done for so many years?”