https://www.humanreligions.info/tags/god_perfection.html
Main page:
Human Truth Foundation pages (3):
God is Logically Impossible: The Argument for Atheism from Incoherence: 5. The Concept of a Perfect God is Impossible
The Four Dimensions and the Immutability of God: 4. The Concept of a Perfect God is Impossible
The Assumptions about God and Creation, of Both Theists and Atheists: 2.13. God is Perfect