The lessons imparted from Egyptians and the Greeks is far more important than Christianity has ever been for Western civilization. It is shared in the root and core of Western sciences and philosophy.
As Christianity came to dominate, destroying the writings of great pagan thinkers, the West declined into irrelevancy while Islamic thinkers studied it and carried them to their height. Then, ironically, as they began to discard with the Greeks, Europe picked them up again and this formed the era we call the Renaissance. A rebirth of Greek philosophy, and of Western esotericism. This kind of study was important to prominent figures like John Dee or Sir Isaac Newton.
While still influenced by Christianity, let's be honest, they were only nominal Christians with how deep into mystery schools they really were. Christianity didn't survive its second struggle with Neoplatonism, and its purest has been dead ever since.
THIS IS A GOOD THING
Because Christians nearly destroyed the roots of Western civilization in its entirety, which if you ask me, is Jewish as FUCK.