Misinterpretations often include treating this as a binding ritual for modern Christians, enforcing legalistic observance of the Jewish calendar without grace, or conversely, ignoring it as irrelevant under the New Covenant; others confuse the biblical lunar reckoning with the Gregorian calendar, leading to incorrect timing, or allegorize it excessively to overshadow its historical role in foreshadowing Christ's sinless body and the call to holy living.
Exodus 12:18
King James Version (1769)
18 In the first month, on the fourteenth day of the month at even, ye shall eat unleavened bread, until the one and twentieth day of the month at even.
This verse specifies the exact timeframe for the Feast of Unleavened Bread, from the evening of the 14th day to the evening of the 21st day in the first month, commanding the Israelites to eat unleavened bread during this seven-day period as a commemoration of their swift deliverance from Egypt, symbolizing purity, haste in obedience to God, and separation from the corruption of sin represented by leaven.