Zechariah 7:3-5

saying to the priests of the house of the LORD of hosts and the prophets, “Should I weep and abstain in the fifth month, as I have done for so many years?” Then the word of the LORD of hosts came to me: “Say to all the people of the land and the priests, ‘When you fasted and mourned in the fifth month and in the seventh, for these seventy years, was it for me that you fasted?