Divination is an art of foretelling future events by supernatural means. The word is generally understood to denote fortune-telling or sorcery, performed in divers ways—such as by the inspection of planets, stars, clouds; consulting spirits, witches, magicians; watching the flight of birds, inspecting the entrails of beasts and human victims, and examining the lines of the hand. But it is not necessary to extend the list here, as the various methods of divination will be enumerated and explained as we proceed. It was a maxim with the heathen nations of antiquity, that, if there were gods, they cared for men; and if they had any regard for the human family, they would give signs of their will. The Sortes Prœnestinæ were famous among the Greeks; and this superstition passed into Christian nations.

St. Augustine did not disapprove of divination being resorted to, provided it was not used for worldly purposes. Gilbert of Nogent says that in his time (about the beginning of the twelfth century) it was customary, at the consecration of bishops, to consult the Sortes Sanctorum, to ascertain the success, fate, and other particulars of their episcopate. Many divines held that the lot was conducted by Providence. Though several popes about the eighth century disapproved of divination, and classed it among Pagan superstitions, traces of this mode of searching into futurity were found in after ages in the Greek and Latin Churches.

Upon the consecration of a bishop, after laying the Bible upon his head, the book was opened, and the first verse that the eye fell on was supposed to throw light on the bishop's future career. A bishop of Rochester, at his consecration by Lanfranc, Archbishop of Canterbury, had a happy presage in these words: "Bring hither the best robe, and put it on him." But the answer of the Scriptures at the consecration of St. Lietbert, Bishop of Cambray, was still more propitious: "This is my beloved son." The death of Albert, Bishop of Liege, was reported to have been made known to him by these words, which the archbishop who consecrated him found on opening the New Testament: "And the king sent an executioner, and commanded his head to be brought; and he went and beheaded him in prison." The Primate, greatly moved, embraced the new bishop, and said: "My son, having given yourself up to the sacred office, carry yourself righteously and devoutly, and prepare yourself for the trial of martyrdom." The bishop was afterwards murdered by the treacherous connivance of Henry VI.

De Garlande, Bishop of Orleans, became so odious to his clergy that they sent a complaint against him to Pope Alexander III., concluding: "Let your apostolical hands put on strength to strip naked the iniquity of this man, that the curse prognosticated on the day of his consecration may overtake him; for, the gospel being opened according to custom, the first words that appeared were: 'And the young man, leaving his linen cloth, fled from them naked.'"

William of Malmesbury relates that Hugh de Montaigne, Bishop of Auxerre, was obliged to go to Rome to answer several charges brought against him by some of his chapter, touching his morals; but his friends urged as undoubted testimony of his chastity the prognostic on the day of his consecration: "Hail Mary, full of grace."

Piously-inclined people not unfrequently went to church with the intention of receiving a declaration of the divine will, by hearing words of Scripture read or sung at the moment of the person's entrance. St. Anthony, when irresolute about his retirement, went to a church, where on entering he heard the words: "Go, sell all thou hast, and give it to the poor, then come and follow me." These expressions terminated his wavering: he withdrew to his solitude, leaving wealth and friends behind, and took up his abode in an old ruin on the top of a hill, where he spent many years of rigorous seclusion. He became the mighty oracle of the valley of the Nile.

It is reported that Clovis, the first Christian king of France, marching against Alaric, king of the Visigoths, sent nobles with presents to be offered at the tomb of St. Martin, and with instructions to endeavour to bring him a favourable augury, while he himself prayed for supernatural help. His messengers had no sooner entered the sacred place than they heard the priest chanting: "Thou hast girded me with strength for war; thou hast subdued under me those that rose up against me." Encouraged by this favourable prognostic, Clovis girded on his armour, engaged in battle, and gained a complete victory.

Peter de Blois, who lived in the twelfth century, says in a letter to Reginald, whose election to the see of Bath had long been strenuously opposed, that he believed he would soon be established in his diocese, for he (De Blois) had dreamed two nights successively of being at Reginald's consecration; and also, that being anxious to know the certain meaning of his dreams by lots and the psalter, his dreams were confirmed by the words turning up to him: "Moses and Aaron among the priests."

St. Consortia, in her youth, was passionately courted by a young man of a very powerful family, though he knew she had formed the design of taking the veil. Knowing that a refusal would expose her parents to many inconveniences, if not to positive danger, she desired a week to determine whether she would become his wife. At the expiration of that time her lover came to know her answer. "I can neither accept you nor refuse the offer," said she; "but if you agree to it, let us go to the church and lay the holy gospel on the altar, and say a joint prayer, then we will open the book, to be informed of the divine will." He did as suggested, and the first words that met the eyes of both were: "Whosoever loveth father or mother more than me, is not worthy of me." This was enough: the lovers acquiesced in the decree, and she became a nun.

Responses were given in the heathen temples through certain objects, such as the tinkling of the caldrons at Dodona, the rustling of the sacred laurel, the murmuring of streams, or by the action of sacred animals. In the Egyptian hieroglyphic texts the gods speak in an oracular manner, and their consultation by the Pharaohs is mentioned. Oracles were used by the Hebrews. Their oracles were by word of mouth, dreams, visions, and prophetical sayings. They were also in use throughout Babylonia and Chaldæa; but the Grecian oracles possessed the highest reputation for truthfulness, the most renowned of which was the Delphic oracle. The precedence of consulting this oracle was determined by lots; and sacrifices were offered by the inquirers, who went, with laurel crowns on their heads, and delivered their questions carefully sealed. There was a secondary class of oracles or prophetic persons in Greece. One was situated at Oropus, in Attica, being the shrine of a deified magician. Those who consulted it fasted a whole day, abstained from wine, sacrificed a ram to Amphiaraus, and slept on the skin in the temple, where futurity was opened up to them through dreams. The oracle of Trophonius, which owed its origin to a deified seer, was given in a cave into which the votary entered, bathed, and anointed himself, while holding a honeyed cake. He obtained the desired knowledge by what he saw and heard. Written oracles existed of the prophecies of celebrated seers, and were preserved in the acropolis of Athens. Among the Arabs divination was, and is, greatly practised, and also among the Celtic people. Oracular answers were usually couched in dark ambiguous terms; and it was thought that at times the information was given by demons.