When.

Isaiah 58:5
Is this the fast I have chosen, a day for a man to deny himself, to bow his head like a reed, and to spread out sackcloth and ashes? Will you call this a fast and a day acceptable to the LORD?

seventh.

Zechariah 8:19
"This is what the LORD of Hosts says: The fasts of the fourth, the fifth, the seventh, and the tenth months will become times of joy and gladness, cheerful feasts for the house of Judah. Therefore love truth and peace."

2 Kings 25:23
When all the commanders of the armies and their men heard that the king of Babylon had appointed Gedaliah as governor, they came to Gedaliah at Mizpah--Ishmael son of Nethaniah, Johanan son of Kareah, Seraiah son of Tanhumeth the Netophathite, and Jaazaniah son of the Maacathite, as well as their men.

Jeremiah 41:1-4
In the seventh month, Ishmael son of Nethaniah, the son of Elishama, who was a member of the royal family and one of the king's chief officers, came with ten men to Gedaliah son of Ahikam at Mizpah, and they ate a meal together there. . . .

seventy.

Zechariah 7:3
by asking the priests of the house of the LORD of Hosts as well as the prophets, "Should I weep and fast in the fifth month, as I have done these many years?"

Zechariah 1:12
Then the Angel of the LORD said, "How long, O LORD of Hosts, will You withhold mercy from Jerusalem and the cities of Judah, with which You have been angry these seventy years?"

Jeremiah 25:11
And this whole land will become a desolate wasteland, and these nations will serve the king of Babylon for seventy years.

did.

Zechariah 7:6
And when you were eating and drinking, were you not doing so simply for yourselves?

Isaiah 1:11, 12
"What is your multitude of sacrifices to Me?" says the LORD. "I am full from the burnt offerings of rams and the fat of well-fed cattle; I take no delight in the blood of bulls, of lambs and goats. . . .

Isaiah 58:4-6
You fast with contention and strife to strike viciously with your fist. You cannot fast as you do today and have your voice be heard on high. . . .

Matthew 5:16-18
In the same way, let your light shine before men, that they may see your good deeds and glorify your Father in heaven. . . .

Matthew 6:2, 5, 16
So when you give to the needy, do not sound a trumpet before you, as the hypocrites do in the synagogues and on the streets, to be praised by men. Truly I tell you, they already have their reward. . . .

Matthew 23:5
All their deeds are done for men to see. They broaden their phylacteries and lengthen their tassels.

Romans 14:6-9, 17, 18
He who observes a special day does so to the Lord; he who eats does so to the Lord, for he gives thanks to God; and he who abstains does so to the Lord and gives thanks to God. . . .

1 Corinthians 10:31
So whether you eat or drink or whatever you do, do it all to the glory of God.

2 Corinthians 5:15
And He died for all, that those who live should no longer live for themselves, but for Him who died for them and was raised again.

Colossians 3:23
Whatever you do, work at it with your whole being, for the Lord and not for men,