The Key of Solomon, Book II 22

1CONCERNING CHARACTERS
2Whensoever in any operation it is necessary to write characters, and thou fearest that thou wilt fail, do this: [With the quill pen of the art and a scarlet or cinnabar color,] write at the beginning the name EHEIEH ASHER EHEIEH ( Figure 91), and at the end the name AIN SOPH ( Figure 92) [which signifies 'Infinite']; between these names write what thou wishest, and if thou hast anything especial to do bear the said written names upon the wrapper in silk, and thou shalt say over them:—
3Most wise and most high creator of all things, I pray thee for thy pity and mercy that thou mayest grant such virtue and power unto these holy names, that thou mayest keep these characters from all deceit and error, through thee, O most holy ADONAI. Amen. After having repeated this thou shalt write the requisite characters, and thou shalt not fail, but shall attain thy desired end.