While the Easter holiday traditionally has brought the biggest boost in attendance for many U.S. churches, a new survey from LifeWay Research has found that one in five Americans are unsure if they will even find themselves in a pew this year come Resurrection Sunday – and many Christians are among that number.

Easter, which reportedly leads Christmas and Mother’s Day in drawing big numbers to church, is arguably the most important Christian holiday, as it marks the resurrection of Jesus Christ three days after his death by crucifixion, as described in the New Testament of the Bible.