Among Sobek’s epithets are “Lord of the Horizon” (nb AXt), “Who Rises In the Horizon” (wbn m AXt), and “The One In the Horizon”. As Sobek Ra he is “Who Speaks In the Horizon” (mdw m Axt).
Sobek the Crocodile God has always seemed to have held solar associations, it is theorized that this may be due to the morning habit of the Nile Crocodiles as they emerge from the water in the morning, basking in the Sunlight with mouths open. During the span of his worship, Sobek-Horus and Sobek Ra were both venerated, and by the Ptolemaic Period his connection to the Sun was so strong he was analogous with Helios.
As much as he is a Sun deity, Sobek seems to be strongly correlated not only to the Horizon, but specifically to sunrise and sunset.
As “Lord of Bakhu” (Spell 108, Book of the Dead & Spell 160 Coffin Text), a mountain in the East and land of the sunrise, Sobek resides in a temple of carnelian. Carnelian was the rising sun, the solar eyes of Ra, and could indicate anger or rage due to its color.
Sobek’s link to the Sun’s cycle is perhaps most clearly illustrated in “The Book of the Fayyum”, where the Crocodile God has fully, mystically merged with the Sun, and its cycle is here told in full crocodilian flavor.
He emerges from the waters of the Underworld, in the East, as Sobek Ra in glorious beauty and slaughters his enemies on the “Island of Fire”. The crocodiles emerge from the water to bask in the grandeur of the Sun, in praise of God. Ascending into the sky, his resplendent rays bless the world and caress the sacred mummified crocodile kept in the city of Shedet.
In the evening at the far West of Lake Moeris of the Fayyum, the Crocodile god becomes Amun Ra, in the form of a lion with a ram’s head and a crocodile’s tail, and sinks into the water on the horizon. The crocodile’s natural behavior is to return to the dark waters in the evening, and instead of the Sun god moving through Underworld caves as is told elsewhere, it is here that the Sun god swims through the dark waters of the Underworld as Lake Moeris, in his crocodile form. He emerges again, triumphant, in the morning, and the cycle begins anew.
Dissolution and regeneration.
Dua Sobek 