Israel's feasts and festivals were to be times of religious and community celebration. Ordained by God, they were to be the outward expression of a right spirital attitude.

Exodus 5:1

Feasts and festivals were appointed by God

See also

Exodus 10:9
Hosea 9:5
Exodus 23:14-19

Israel's three annual festivals

2 Chronicles 8:12-13

The three pilgrim festivals

Exodus 12:14
Numbers 28:17

The Feast of Unleavened Bread/Passover:

Leviticus 23:15-21
Numbers 28:26

The Feast of Weeks/Harvest:

Leviticus 23:39-41
Numbers 29:12

The Feast of Tabernacles/Ingathering:

Judges 21:19
1 Kings 8:65
Zechariah 8:19

pp 2Ch 7:8

They were a joyful response to God's blessings

See also

Nahum 1:15

Contrasting with fasts.

Numbers 29:39
Ezekiel 46:11

They were celebrated with sacrifices and offerings

Numbers 10:10

Israel's other festivals

1 Samuel 20:18

New Moon festivals:

1 Chronicles 23:31
Hosea 2:11
Exodus 32:5
1 Kings 12:32-33

Unlawful festivals:

Isaiah 1:14; 29:1

Festivals should be the outward expression of a right spiritual attitude

Hosea 5:7
Malachi 2:3
1 Corinthians 5:8
Colossians 2:16-17

OT festivals find their fulfilment in Jesus Christ

See also

4951 month
4978 year
5313 flogging
5339 home
7406 Passover
7435 sacrifice, in OT
8142 religion
8283 joy
8642 celebration
8768 idolatry