In Deuteronomy 16:1, the word 'Passover' is out of context. It applies to the whole season, including the Night to be Much Observed and the Days of Unleavened Bread.
The proponents of a 15th Passover discount clear scriptural details and instead speculate. One cannot build doctrines on implication, distortion, and traditions.
The Passover sacrifice is basically unconnected with atonement, but represents the peace and security which attends fellowship with God because of His acceptance.
In Revelation, John refers to Christ as the Lamb more than any other designation because of His role of Redeemer, which is different from a sin offering.
The movie Ben-Hur captures the essence of the time and ministry of Christ. By letting go of anger and hatred, we take on the yoke of Jesus Christ.
Deuteronomy 16:1-8 refers to Unleavened Bread rather than Passover (a scribal error, perhaps referring to the season). Ten clues clear up this misconception.
As part of Christ's body or household, we have a responsibility to stay attached to the spiritual organism and to respond to the head.
Jesus' triumphal entry into Jerusalem fulfilled prophecies. The crowds welcoming Jesus were actually choosing the Paschal Lamb of God on Abib/Nisan 10.