Blessed salt in Christianity

Blessed salt has been used in various forms throughout the history of Christianity. Among early Christians, the savoring of blessed salt often took place along with baptism. In the fourth century, Augustine of Hippo named these practices "visible forms of invisible grace". However, its modern use as a sacramental remains mostly limited to its use with holy water within the Anglican Communion and Roman Catholic Church.

In the Old Testament, in , "David struck down 18,000 Edomites in the Valley of Salt." In addition, "tells the story of the prophet Elijah pouring salt onto Jericho's water springs."

For centuries since the advent of Jesus, salt that had been cleansed and sanctified by special exorcisms and prayers was given to catechumens before entering the church for baptism. According to the fifth canon of the Third Council of Carthage in the third century, salt was administered to the catechumens several times a year, a process attested by Augustine of Hippo (Confessions I.11). Two specific rites, namely a cross traced on the forehead and a taste of blessed salt, not only marked the entrance into the catechumenate, but were repeated regularly. By his own account, Augustine was "blessed regularly with the Sign of the Cross and was seasoned with God's salt."

Early in the sixth century, John the Deacon also explained the use of blessed salt, "so the mind which is drenched and weakened by the waves of this world is held steady". Salt continued to be customarily used during the scrutinies of catechumens or the baptism of infants.

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