Easter and Passover are two entirely different events on two entirely different calendars — one pagan, one Biblical. Understanding the difference is essential to understanding the true timeline of Christ Jesus' crucifixion and resurrection.
The Hebrew Passover (Pésaj) is the 14th day of the first Hebrew month (Nisan 14). It is a divinely ordained feast commanded by God in Exodus 12, commemorating Israel's exodus from Egypt. Christ Jesus celebrated His last Passover Seder (the "Last Supper") and was crucified on the day of Passover, CE 31 — a Hebrew Wednesday.
Easter is a solar-calendar celebration of pagan origin, adopted and "Christianized" by the Roman Catholic church. Easter's date is calculated by a formula involving the vernal equinox and lunar cycles — completely independent of the Hebrew calendar. The name "Easter" itself derives from pre-Christian traditions.
The critical problem: If Easter were the true resurrection day, Easter would always follow The Passover. But it does not — Easter frequently occurs days or even weeks before Passover.
In the year of Christ Jesus' crucifixion (CE 31), Easter occurred 25 days before The Passover. He was therefore not resurrected on Easter unless He arose from the grave 25 days before He died.
A FALSE Pentecost is counted from a capricious, erratic Easter. The TRUE, Biblical Pentecost (Shavu'ot) is 50 days from the first Sunday that follows The Passover. The confusion between Easter and Passover has produced centuries of erroneous Christian theology about the timing of Christ Jesus' death, burial, and resurrection.
See also: Chart of Easter, Passover & Pentecost Dates 2000–2050 and FAQ 03 — When Was Christ Jesus Crucified?