4 Those angels who occupy the lowest heaven, that, namely, which is visible to us, formed all the things which are in the world, and made allotments among themselves of the earth and of those nations which are upon it. The chief of them is he who is thought to be the God of the Jews; and inasmuch as he desired to render the other nations subject to his own people, that is, the Jews, all the other princes resisted and opposed him. Wherefore all other nations were at enmity with his nation.
But the father without birth and without name, perceiving that they would be destroyed, sent his own first-begotten Nous (he it is who is called Christ) to bestow deliverance on those who believe in him, from the power of those who made the world. He appeared, then, on earth as a man, to the nations of these powers, and wrought miracles. Wherefore he did not himself suffer death, but Simon, a certain man of Cyrene, being compelled, bore the cross in his stead; so that this latter being transfigured by him, that he might be thought to be Jesus, was crucified, through ignorance and error, while Jesus himself received the form of Simon, and, standing by, laughed at them.
For since he was an incorporeal power, and the Nous (mind) of the unborn father, he transfigured himself as he pleased, and thus ascended to him who had sent him, deriding them, inasmuch as he could not be laid hold of, and was invisible to all. Those, then, who know these things have been freed from the principalities who formed the world; so that it is not incumbent on us to confess him who was crucified, but him who came in the form of a man, and was thought to be crucified, and was called Jesus, and was sent by the father, that by this dispensation he might destroy the works of the makers of the world.
If any one, therefore, he declares, confesses the crucified, that man is still a slave, and under the power of those who formed our bodies; but he who denies him has been freed from these beings, and is acquainted with the dispensation of the unborn father.
Source: Adversus haereses (New Advent)