Zechariah 7:6

And when ye did eat - They had not observed those fasts as they should have done. They deplored the loss of their temple, and its riches, etc., but they did not humble themselves because of those iniquities which had brought the displeasure of God upon them, their temple, and their city.

And when ye eat and when ye drink, is it not ye who eat and ye who drink? - Conversely now that, after your return, ye feast for joy, this is no religious act; ye have all the good of it, there is no thanksgiving to God. Contrary to the apostle's saying, "Whether ye eat or drink, or whatever ye do, do all to the glow of God" 1 Corinthians 10:31. "He eateth and drinketh to himself, who receiveth the nourishments of the body, which are the common gifts of the Creator, without the needy. And anyone fasts to himself, if he doth not give to the poor what for the time he withdraweth from himself, but keepeth it to be thereafter offered to his appetite. Hence, it is said by Joel, sanctify a fast. For to 'sanctify a fast' is to show an abstinence worthy of God through other good deeds. Let anger cease, quarrels be hushed. For in vain is the flesh worn, if the mind is not refrained from evil pleasures, since the Lord says by the prophet, "Behold, in the day of your fast ye find pleasure. Behold, ye fast for strife and debate ..." Isaiah 57:3-4.

7:6 For yourselves - I was as little minded by you in your fasts, as in your feasts.