Easter, Resurrection of Christ is the oldest Christian holiday, the main holiday of the liturgical year, established in honor of the Resurrection of Jesus Christ.
In the Catholic, Eastern Orthodox, Oriental Orthodox and Protestant churches of the entire Christian world, Easter has the highest status of celebration. The date of the holiday is not constant and is calculated according to the lunar-solar calendar (transitional holiday) each specific year.
Old Testament Passover - Passover is celebrated in honor of the release of the people of Israel from Egyptian slavery - the transition from slavery to freedom. The Resurrection of Christ is the transition from death to life, the release of a person from the burden of sins, it is the way out, the transition of a person from the slavery of sin and evil to freedom, love, and goodness.