In Mormonism, sealings are sacred temple ordinances that bind family relationships together for eternity. The most important sealing joins a husband and wife in “eternal marriage,” believed to continue after death. Children born to or later sealed to these parents are considered part of an “eternal family,” united forever. Sealings are performed only by priesthood authority in LDS temples and are seen as essential for exaltation — living eternally in the presence of Heavenly Father and becoming like him.
Mormons also perform proxy sealings for the dead, believing that those who accept the gospel in the spirit world can choose to have these ordinances applied to them. This practice reflects their belief that God’s plan allows family ties and saving covenants to extend beyond the grave.
Biblical Christianity teaches that marriage is a sacred but temporary covenant for this life (Matthew 22:30). Our hope in eternity rests not on family bonds or temple ordinances, but on being united to Christ through faith. The Bible presents eternal life as life with God through Jesus alone — not through the continuation of earthly relationships.