The Egyptian Book of the Dead
Chapter whereby the Mouth of a person is opened for him in the Netherworld.
23.1He saith: Let my mouth be opened by Ptah, and let the muzzles which are upon my mouth be loosed by the god of my domain.
23.2Then let Thoth come, full and equipped with Words of Power, and let him loose the muzzles of Sutu which are upon my mouth, and let Tmu lend a hand to fling them at the assailants.
23.3Let my mouth be given to me. Let my mouth be opened by Ptah with that instrument of steel wherewith he openeth the mouths of the gods.
23.4I am Sechit Uat’it who sitteth on the right side of Heaven: I am Sahit encircled by the Spirits of Heliopolis.
23.5And all the Words of Power, and all the accusations which are uttered against me—the gods stand firm against them: the cycles of the gods unitedly.