Despite of his indispensable role in the ancient Egyptian mythology, Thuth has never occupied the position of one of the members of the divine family or as a Chief god in any myth. There are many sources and myths that present him one of the major gods who were accompanying the sun god in the solar boat and responsible for setting the daily course of the chief god. He attained more power in the declining years of Ra, when he occupied the position of Ra's assistant who was responsible for the moon and keeping the stability of the sun god.
In the Pyramids Texts, Thuth is described as one of the prominent gods in the underworld who serve in many posts including carrying the recently dead souls on his wing to cross the "winding waterway" and on the other shore serving as the protector and messenger of the Chief god who uses his cutting knife to attack his enemies. There are also many depictions presenting Thuth as a member in the court standing next to the scale that was used for weighing the heart of the dead and writing down the judgment of the dead in a papyrus scroll.
Some of the spells of the pyramid Texts and the Coffin Texts present Thuth as a "Peacemaker" who reconciles between the conflicting gods like Horus and Seth. In other resources, he was in charge of monitoring the eye of Horus in its journey to wards the kind in order to give him eternity.
Thuth was considered as the god of science due to his great knowledge of the celestial mathematics that made him responsible for maintaining the balance of earth. He is credited to naming the things that exist on the surface of earth and establishing the sciences of medicine, astronomy, music and others. It is registered in the Book of the Dead that he was responsible for writing letters on behalf of the gods of Annu.