Zechariah 7:5 mentions the fifth and seventh month fasts during exile, which God here declares will become joyful feasts.

Zechariah 7:3 shows the people asking about the fifth month fast; God here answers by transforming it to joy.

Jeremiah 31:13 explicitly states 'I will turn their mourning into joy,' directly paralleling Zechariah's promise that fasts become seasons of joy.

Jeremiah 52:12-15 describes the temple's destruction in the fifth month, the fast God here turns to joy.

Jeremiah 52:6 records the severe famine on the ninth day of the fourth month, the event behind the fast of the fourth month in Zechariah 8:19.

Jeremiah 52:4 records the siege's start in the tenth month – the fast God here changes to a feast.

Jeremiah 41:1-3 also describes Gedaliah's killing in the seventh month, the fast being transformed.

Jeremiah 39:2 gives the exact date of the breach in the fourth month, directly corresponding to the fast of the fourth month in Zechariah 8:19.

2 Kings 25:3 describes the famine in the fourth month during Jerusalem's siege, the event behind the fast of the fourth month in Zechariah 8:19.

Isaiah 51:11 repeats the same image of the ransomed with everlasting joy, reinforcing the theme of joy replacing mourning in Zechariah.

Isaiah 35:10 describes the ransomed returning with everlasting joy, echoing Zechariah's promise that fasts become joyful feasts—both depict sorrow fleeing.

Esther 9:22 says the month was turned from sorrow to joy – a direct parallel to fasts becoming joyful feasts.

2 Kings 25:25 records Gedaliah's murder in the seventh month – the fast God here turns into joy.

In Jeremiah 33:11, joyful voices and thank offerings in the restored temple directly mirror Zechariah’s vision of fasts becoming cheerful feasts.

In Jeremiah 39:1, the siege of Jerusalem begins in the tenth month—the event behind the fast of the tenth month in Zechariah.

In 2 Kings 25:8, the temple is destroyed in the fifth month—the event memorialized by the fast of the fifth month that Zechariah promises will become joy.

Psalm 30:11 describes God turning mourning into dancing, mirroring the transformation of fasts to feasts here.

In Esther 9:30, the phrase ‘peace and truth’ echoes Zechariah’s call to ‘love truth and peace’, and both describe festivals born from calamity turned to joy.

In Jeremiah 30:19, songs of thanksgiving and celebration are promised for restoration—similar to Zechariah’s transformation of fasts into joyful feasts.