Baetylus (also Bethel, or Betyl, from Semitic bet el "house of god") is a word denoting sacred stones that were supposedly endowed with life. According to ancient sources, these objects of worship were meteorites, which were dedicated to the gods or revered as symbols of the gods themselves. A baetyl is also mentioned in the Bible at Bethel in the Book of Genesis in the story of Jacob's Ladder.
In the Phoenician mythology related by Sanchuniathon, one of the sons of Uranus was named Baetylus. The worship of baetyls was widespread in the Phoenician colonies, including Carthage, even after the adoption of Christianity, and was denounced by Augustine of Hippo.
In ancient Greek religion and mythology, the term was specially applied to the Omphalos, the stone supposed to have been swallowed by Cronus (who feared misfortune from his own children) in mistake for his infant son Zeus, for whom it had been substituted by Gaea. This stone was carefully preserved at Delphi, anointed with oil every day and on festive occasions covered with raw wool.
In Rome, there was the stone effigy of Cybele, called Mater Idaea Deum, that had been ceremoniously brought from Pessinus in Asia Minor in 204 BC. Another conical meteorite was enshrined in the Elagabalium to personify the Syrian deity Elagabalus.