baptism for the dead
"Baptism for the dead" is a practice primarily associated with the Latter-day Saint movement, where living individuals are baptized on behalf of deceased persons. This belief is rooted in the idea that everyone should have the opportunity to accept the teachings of Jesus Christ and receive salvation, even if they did not have the chance during their lifetime.
The practice is based on a passage from the New Testament, specifically 1 Corinthians 15:29, which mentions being baptized for the dead. Members of the Church of Jesus Christ of Latter-day Saints perform these baptisms in temples, viewing them as a way to extend the grace of God to those who have passed away.