I am not going to go into detail to explain the connection and significance between Yahweh, and Seth; you can identify that information through your own sincere research if you are inclined.
I would study some aspects of the Torah, ancient near-eastern traditions, Gnosticism, traditions of the Magi, and also Sufi practices related to Djinn, to acquire some food for thought on the matter - rather than accept the prevalent information from sources like COS, TOS, or JOS.
Most people’s impression of Yahweh is derived from their parents, church, pastor etc. and common misconceptions about religion from Christian, Jewish, Muslim, and Satanic dogma. But people should stop for a moment, and really contemplate the true nature of this god, outside of that particular tame and lame lens.
Yahweh is a god of force, and majesty, and crushes the enemies of his devotees, and can awaken one to Divine Reality. He is the “Eternally Wakeful One”; the “Overpowering One”…
He is the Master of all angels and demons, and makes the world tremble by His indomitable might. He is the god of the mountain, and master and controller of the Dragon of Chaos, the Leviathan (the primal Shakti).
All angels, including devils, are under His authority, and ruthlessly serve and adhere to His divine command.