Holman Bible Dictionary
The Feast of Passover was immediately followed by the holy convocation of the Feast of Unleavened Bread (Leviticus 23:1-7 ). No one worked on either of these holy days, so a day of preparation was set aside to prepare for the holiday period (John 19:14 ). John explicitly identified the day of preparation as the day of Jesus' execution (John 19:14 ,John 19:14,19:31 ,John 19:31,19:42 ) and placed the Last Supper before Passover (John 13:1 ). The Synoptic Gospels, however, dated the Last Supper on the day of Passover (Matthew 26:1 : 17 ; Mark 14:12 ; Luke 22:7 ). This apparent contradiction in dating may depend on whether the gospel writers were referring to the preparation day for the sabbath or to the preparation day for the Passover.
Steve W. Lemke
These dictionary topics are from the Holman Bible Dictionary, published by Broadman & Holman, 1991. All rights reserved. Used by permission of Broadman & Holman.
Butler, Trent C. Editor. Entry for 'Preparation Day'. Holman Bible Dictionary. http://www.studylight.org/dictionaries/hbd/p/preparation-day.html. 1991.