Passover

Commanded in the Old Testament: Leviticus 23:5

Observed by Jesus Christ, the apostles or the Church in the New Testament: Matthew 26:2-19; Mark 14:12-16; Luke 2:41-42; Luke 22:1-20; John 2:13-23; John 6:4; John 13:1-30; 1 Corinthians 11:23-29

Feast of Unleavened Bread

Commanded in the Old Testament: Leviticus 23:6-8

Observed by Jesus Christ, the apostles or the Church in the New Testament: Matthew 26:17; Mark 14:12; Luke 2:41-42, Luke 22:1-7; Acts 20:6; 1 Corinthians 5:6-8

Feast of Pentecost

Commanded in the Old Testament: Leviticus 23:15-22

Observed by Jesus Christ, the apostles or the Church in the New Testament: Acts 2:1-21; Acts 20:16; 1 Corinthians 16:8

Feast of Trumpets*

Commanded in the Old Testament: Leviticus 23:23-25

Observed by Jesus Christ, the apostles or the Church in the New Testament: Matthew 24:30-31; 1 Thessalonians 4:16-17; Revelation 11:15

Day of Atonement

Commanded in the Old Testament: Leviticus 23:26-32

Observed by Jesus Christ, the apostles or the Church in the New Testament: Acts 27:9

Feast of Tabernacles

Commanded in the Old Testament: Leviticus 23:33-43

Observed by Jesus Christ, the apostles or the Church in the New Testament: John 7:1-14; Acts 18:21

The Eighth Day (sometimes called the Last Great Day)

Commanded in the Old Testament: Leviticus 23:36

Observed by Jesus Christ, the apostles or the Church in the New Testament: John chapters 7-9

*Although the Feast of Trumpets is not mentioned by name in the New Testament, the theme of the day—the sounding of trumpets announcing Jesus Christ's return—is mentioned by several New Testament authors as noted in the references.