Another way to address this is by looking at the two sides of the brain. The right brain is more spatially integrated and would therefore be connected to the original instinctive integration of the pre-humans with nature; paradise when the gods ruled. I would define the pre-humans as having human DNA, but not a human mind which could allow civilization. The contrast would be analogous to domesticated and wild animals of the same species. The DNA is close but temperament is vastly different, with the domestic much more open to learning from humans.
For humans (domestic analogy) and the human ego to differentiate from the instinctive pre-humans, they would need more conscious access to the left brain so they can feel and build a sense of uniqueness (differential side of the brain). This is also the side of the brain needed for advanced cultural language. Creation by the gods, would be aspects of the personality firmware, engraining the left brain, by way of the right brain. Whereas the right brain is 3-D or spatial, the personality firmware are more like 4-D; integrated with a time element. For example, falling in love animates the mind and heart toward a future goal of two humans integrating. Once the firmware is animated it is beyond the ego to control, rather one becomes carried along by the fate of the gods at 4-D.
Picture a 3-D ball, which is being approximated by a large number of 2-D circles, all with the same center as the ball, but each circle at different angles so they fill in the 3-D. The right brain is the ball (human nature common to all), creation appears when one of the 2-D planes starts to differentiate within the left brain; unique human culture. The 4-D from the personality firmware creates a time projection allowing this to assemble (seven days of creation).
Descended would mean, based on the 2-D circle that was originally created early in civilization, the left brain circle continues to undergo change, both due to further firmware action (involvement of the 4-D gods using time cycles) and the impact of the differential ego (humans putting their imprint on culture).
Christ was begotten and not made. He was not created but evolved from earlier beginning. Because Christianity is alive, it continued to develop and evolve as times went on. For example, the Catholic church is still malleable enough where changes such as women priests remain on the table for the future. But they wait for 4-D approval, not 2-D approval of man. The reason is 2-D cannot express 3-D to make it integrated like instinct. It could lead to division instead.