Be very, very careful. This isn't something to be played around with… it is real magic*. Unlike summoning angels who are so powerful they can reveal the past present and future or transform living things, yet can be called and controlled by saying their names and wearing a metal disk with some squiggly lines (made at the right time of year, obviously), here you will be calling on God and drawing some arcane symbols and vaguely geometrical shapes, so it's not the same at all.
* Well, actually it isn't "magic" because Christianity would never have anything to do with such evil Pagan rituals, so even though you think you'll be casting a spell and chanting incantations you will actually be praying, which is completely different… honest.
MY beloved Son, if thou findest any Theft, thou shalt do as is hereinafter ordained, and with the help of God thou shalt find that which hath been taken away. If the hours and days be not otherwise ordained in this operation, thou must refer to what hath already been said. But before commencing any operation whatsoever for the recovery of things stolen, after having made all necessary preparations, thou shalt say the following Oration:
Ateh Adonai Elohim Asher Ha-Shamain Ve-Ha-Aretz, &c.
Thou:, O Lord, Who hast made both Heaven and Earth, and hast measured them in the hollow of Thy hand; Thou Who art seated upon the Kerubim and the Seraphim, in the high places, whereunto human understanding cannot penetrate; Thou Who hast created all things by Thine agency, in whose Presence are the Living Creatures, of which four are marvellously volatile, which have six wings, and who incessantly cry aloud: "QADOSCH, QADOSCH, QADOSCH, ADONAI ELOHIM TZABAOTH, Heaven and Earth are full of Thy Glory;" O Lord God, Thou Who hast expelled Adam from the Terrestrial Paradise, and Who hast placed the Kerubim to guard the Tree of Life, Thou art the Lord Who alone doest wonders; show forth I pray Thee Thy Great Mercy, by the Holy City of Jerusalem, by Thy wonderful Name of four letters which are YOD, HE, VAU, HE, and by Thy Holy and Admirable Name, give unto me the power and virtue to enable me to accomplish this experiment, and to come unto the desired end of this operation; through Thee who art Life, and unto Whom Life belongeth unto the eternal ages. Amen.
After this perfume and cense the place by burning Incense. This aforesaid place should be pure, clean, safe from interruption or disturbance, and proper to the work, as we shall hereafter show. Then sprinkle the aforesaid place with consecrated Water, as is laid down in the Chapter concerning Circles.
The Operation being in such wise prepared, thou shalt rehearse the Conjuration necessary for this experiment, at the end of which Thou shalt say as follows:
O Almighty Father and Lord, Who regardest the Heavens, the Earth, and the Abyss, mercifully grant unto me by Thy Holy Name written with four letters, YOD, HE, VAU, HE, that by this exorcism I may obtain virtue, Thou Who art IAH, IAH, IAH, grant that by Thy power these Spirits may discover that which we require and which we hope to find, and may they show and declare unto us the persons who have committed the theft, and where they are to be found.
I conjure ye, over this burning Incense, anew, ye Spirits above named, by all the aforesaid Names, through which all things created tremble, that ye show openly unto me (or unto this child here present with us) those things which we seek.
These things being accomplished they will make thee to see plainly that which thou seekest. Take note that the Exorcist, or Master of the Art, should be such as is ordained in the Chapter concerning the Exorcist and his Companions; and if in this experiment it should be necessary to write down characters or Name, thou shalt do that which it is necessary to observe regarding the pen, ink, and paper, as is duly prescribed in the chapters concerning them.
For if thou dost not regard these things, thou wilt neither accomplish that which thou desirest, nor arrive at thy desired end.
Take a Sieve, after burning one-half teaspoonful of Incense, and suspend it by a piece of cord wherewith a man has been hung, which should be fastened round the circumference of the rim. Within the rim write with blood in the four divisions thereof the characters . After this take a basin of brass perfectly clean which thou shalt fill with water from a fountain, and having pronounced these words:
DIES MIES YES-CHET BENE DONE FET DONNIMA METEMAUZ,
make the sieve spin round with thy left hand, and at the same time turn with thy right hand the water in the basin in a contrary direction, by stirring it with a twig of green laurel. When the water becometh still and the sieve no longer whirls, gaze fixedly into the water, and thou shalt see the form of him who hath committed the theft; and in order that thou mayest the more easily recognize him, thou shalt mark him in some part of his face with the Magical Sword of Art; for that sign which thou shalt have cut therewith in the water, shall be really found thereafter upon his own person.
Take a Sieve and stick into the outside of the rim the open points of a pair of scissors, and having rested the rings of the said opened scissors on the thumb-nails of two persons, let one of them say the following Prayer:
DIES MIES YES-CHET BENE DONE FET DONNIMA METEMAUZ; O Lord, Who liberatedst the holy Susanna from a false accusation of crime; O Lord, Who liberatedst the holy Thekla; O Lord, Who rescuedst the holy Daniel from the den of lions, and the Three Children from the burning fiery furnace, free the innocent and reveal the guilty.
After this let him or her pronounce aloud the names and surnames of all the persons living in the house where the theft hast been committed, Who may be suspected of having stolen the things in question, saying:
"By Saint Peter and Saint Paul, such a person hath not done this thing."
And let the other reply:
"By Saint Peter and Saint Paul, he (or she) hath not done it."
Let this be repeated thrice for each person named and suspected, and it is certain that on naming the person who hath committed the theft or done the crime, the sieve will turn of itself without its being able to stop it, and by this thou shalt know the evil doer.
If thou wishest to perform the Experiment of Invisibility, thou shalt follow the instructions for the same. If it be necessary to observe the day and the hour, thou shalt do as is said in their Chapters. But if thou needest not observe the day and the hour as marked in the Chapter thereon, thou shalt do as taught in the Chapter which precedeth it. If in the course of the experiment it be necessary to write anything, it should be done as is described in the Chapters pertaining thereto, with the proper pen, paper, and ink, or blood. But if the matter is to be accomplished by invocation, before thy conjurations, thou shalt, while burning Incense, say devoutly in thine heart:
SCEABOLES, ARBARON, ELOHI, ELIMIGITH, HERENOBULCULE, METHE, BALUTH, TIMAYALL, VILLAQUIEL, TEVENI, YEVIE, FERETE, BACUHABA, GUVARIN; through Him by whom ye have empire and power over men, ye must accomplish this work so that I may go and remain invisible.
And if it be necessary in this operation to trace a Circle, thou shalt do as is ordained in the Chapter concerning Circles; and if it be necessary to write Characters, &c., thou shalt follow the instructions given in the respective Chapters.
This operation being thus prepared, if there be an especial Conjuration to perform, thou shalt repeat it in the proper manner; if not, thou shalt say the general Conjuration, at the end of which thou shalt add the following words:
O thou ALMIRAS, Master of Invisibility, with thy Ministers CHEROS, MAITOR, TANGEDEM, TRANSIDIM, SUVANTOS, ABELAIOS, BORED, BELAMITH, CASTUMI, DABUEL; I conjure ye by Him Who maketh Earth and Heaven to tremble, Who is seated upon the Throne of His Majesty, that this operation may be perfectly accomplished according to my will, so that at whatsoever time it may please me, I may be able to be invisible.
I conjure thee anew, O ALMIRAS, Chief of Invisibility, both thee and thy Ministers, by Him through Whom all things have their being, and by SATURIEL, HARCHIEL, DANIEL, BENIEL, ASSIMONEM, that thou immediately comest thither with all thy Ministers, and achievest this operation, as thou knowest it ought to be accomplished, and that by the same operation thou render me invisible, so that none may be able to see me.
In order then to accomplish this aforesaid operation, thou must prepare all things necessary with requisite care and diligence, and put them in practice with all the general and particular ceremonies laid down for these experiments; and with all the conditions contained in our first and second Books. Thou shalt also in the same operations duly repeat the appropriate Conjurations, with all the solemnities marked in the respective Chapters. Thus shalt thou accomplish the experiment surely and without hindrance, and thus shalt thou find it true.
But, on the contrary, if thou lettest any of these things escape thee, or if thou despiseth them, never shalt thou be able to arrive at thy proposed end; as, for example, we enter not easily into a fenced city over its walls but through its gates.
Make a small image of yellow wax, in the form of a man, in the month January and in the day and hour of Saturn, and at that time write with a needle above the crown of its head and upon its skull which thou shalt have adroitly raised, the character following . After which thou shalt replace the skull in proper position. Thou shalt then write upon a small strip of the skin of a frog or toad which thou shalt have killed, the following words and characters: hels, hels, hels, . Thou shalt then go and suspend the said figure by one of thy hairs from the vault of a cavern at the hour of midnight, and burning Incense under it, thou shalt say:
METATRON, MELEKH, BEROTH, NOTH, VENIBBETH, MACH, and all ye, I conjure thee O Figure of wax, by the Living God, that by the virtue of these Characters and words, thou render me invisible, wherever I may bear thee with me. Amen.
And after having burned Incense again under it, thou shalt bury it in the same place in a small deal box, and every time that thou wishest to pass or enter into any place without being seen, thou shalt say these words, bearing the aforesaid figure in thy left pocket:
Come unto me and never quit me whithersoever I shall go.
Afterwards thou shalt take it carefully back unto the before-mentioned place and cover it with earth until thou shalt need it again.
The Bath is necessary for all Magical and Necromantic Arts; wherefore, if thou wishest to perform any experiment or operation, having arranged all things necessary thereunto according to the proper days and hours, thou shalt go unto a river or running stream, or thou shalt have warm water ready in some large vessel or tub in thy secret cabinet, and while disrobing thyself of thy raiment thou shalt repeat the following Psalms: Psalms xiv. or liii; xxvii; liv.; lxxxi; cv.
And when the Master shall be entirely disrobed let him enter into the water or into the Bath, and let him say:
I exorcise Thee, O Creature of water, by Him who hath created thee and gathered thee together into one place so that the dry land appeared, that thou uncover all the deceits of the Enemy, and that thou cast out from thee all the impurities and uncleannesses of the Spirits of the World of Phantasm, so they may harm me not, through the virtue of God almighty who liveth and reigneth unto the Ages of the Ages. Amen.
Then shalt thou begin to wash thyself thoroughly in the Bath, saying:
MERTALIA, MUSALIA, DOPHALIA, ONEMALIA, ZITANSEIA, GOLDAPHAIRA, DEDULSAIRA, GHEVIALAIRA, GHEMINAIRA, GEGROPHERA, CEDAHI, GILTHAR, GODIEB, EZOIIL, MUSIL, GRASSIL, TAMEN, PUERI, GODU, HUZNOTH, ASTACHOTH, TZABAOTH, ADONAI, AGLA, ON, EL, TETRAGRAMMATON, SHEMA, AREISON, ANAPHAXETON, SEGILATON, PRIMEUMATON.
All the which Names thou shalt repeat twice or thrice, until thou art completely washed and clean, and when thou art perfectly pure thou shalt quit the Bath, and sprinkle thyself with exorcised water, in the manner described later on, and thou shalt say:
Purge me, O Lord, with hyssop, and I shall be clean; wash me, and I shall be whiter than snow.
Whilst again clothing thyself, thou shalt recite the following Psalms: Psalms cii.; li.; iv.; xxx.; cxix., Mem., v. 97.; cxiv.; cxxvi., cxxxix.
After which thou shalt recite the following prayer:
EL Strong and Wonderful, I bless Thee, I adore Thee, I glorify Thee. I invoke Thee, I render Thee thanks from this Bath, so that this Water may be able to cast from me all impurity and concupiscence of heart, through Thee, O Holy ADONAI; and may I accomplish all things through Thee Who livest and reignest unto the Ages of the Ages. Amen.
After this take the Salt and bless it in this manner:
The Blessing of the Father Almighty be upon this Creature of Salt, and let all malignity and hindrance be cast forth hencefrom, and let all good enter herein, for without Thee man cannot live, wherefore I bless thee and invoke thee, that thou mayest aid me.
Then thou shalt recite over the Salt, Psalm ciii.
Then taking the grains of the exorcised Salt thou shalt cast them into the aforesaid Bath; and thou shalt again disrobe thyself, pronouncing the following words:
IMANEL, ARNAMON, IMATO, MEMEON, RECTACON, MUBOII, PALTELLON, DECAION, YAMENTON, YARON, TATONON, VAPHORON, GARDON, EXISTON, ZAGVERON, MOMERTON, ZARMESITON, TILEION, TIXMION.
After this thou shalt enter a second time into the Bath and recite Psalms civ. and lxxxi.
Then thou shalt quit the Bath and clothe thyself as before in linen garments clean and white, and over them thou shalt put the garments, of which we shall speak in the proper Chapter, and thus clothed thou shalt go to finish thy work.
The Disciples should wash themselves in like manner, and with like solemnities.