Leviticus 23 reveals seven feasts that the Lord wanted Israel to observe,

1. The Passover (vv. 4, 5)
2. The Feast of Unleavened Bread (vv. 6–8), which was observed immediately after the Passover
3. The Feast of Firstfruits (vv. 9–14)
4. The Feast of Weeks, otherwise known as Pentecost (vv. 15–22)
5. The Feast of Trumpets (v. 23–25)
6. The Day of Atonement (vv. 26–32), which truly was not a feast, for they were to fast
7. The Feast of Tabernacles (vv. 33–43)