"When he saw creation surrounding him, and the throng of angels around him who had come forth from him, he said to them, I am a jealous god and there is no other god beside me.
But by announcing this, he suggested to the angels with him that there is another god. For if there were no other god, of whom would he be jealous?"
http://www.gnosis.org/naghamm/apocjn-meyer.html
"Their chief is blind. Because of his power and his ignorance and his arrogance he said, with his power, “I am god; there is no other but me.”
When he said this, he sinned against all. This speech rose up to incorruptibility. Then there was a voice that came forth from incorruptibility, saying, “You are wrong, Samael,” that is, god of the blind."
http://www.gnosis.org/naghamm/Hypostas-Barnstone.html
"They laughed at the chief creator because he lied, saying, “I am god and there is no other god but me.” When they came to him, they said, “Is this not the god who ruined our work?” He answered and said, “Yes, but if you wish that he not be able to ruin our work, come, let’s create a human being from the earth according to the image of our body and according to the likeness of this being, to serve us, so that whenever this being sees his likeness, he may become enamored of it. Then he will no longer ruin our work, but we shall make those who are born from the light our servants through all the time of this age.”"
http://www.gnosis.org/naghamm/origin-Barnstone.html