Easter is the sacred celebration of Christ's resurrection from the dead. It is the oldest and holiest Christian festival, the climax and center of the liturgical year, and the holy day to which all other holy days point. Even denominations that do not strictly follow a liturgical calendar commemorate Easter with tremendous joy and thanksgiving.
On Easter Sunday, Christians celebrate the resurrection of the Lord, Jesus Christ. It is typically the most well-attended Sunday service of the year for Christian churches.
Christians believe, according to Scripture, that Jesus came back to life, or was raised from the dead, three days after his death on the cross. As part of the Easter season, the death of Jesus Christ by crucifixion is commemorated on Good Friday, always the Friday just before Easter. Through his death, burial, and resurrection, Jesus paid the penalty for sin, thus purchasing for all who believe in him, eternal life in Christ Jesus.