This is really unnecessarily complicated and has numerous fallacies and problems.
Definitions: You don't define what "eternal basis" is. You don't define what "greatness" is. You only equate them in the middle, ultimately equating them with God.
Strawman: You misrepresent the philosophical positions regarding morality. You claim that everyone else who disagrees with you would accept your premise.
Equivocation: Equate eternal basis with moral greatness with God with the God of Christianity (implicitly). Equating your moral greatness, which is based on knowledge of morality not obedience, while the common interpretation of morality is the opposite.
False assumptions: You assume the universe cannot be arbitrary. You assume the universe was created. You assume an entity created the universe. You assume morality needs your "eternal basis".
Hidden definition: You assume the "eternal basis" is a conscious observer in your definition of it requiring "knowledge" yet you make no such definition in your requirement of morality. You assume morality is objective but claim that ultimate moral greatness can only be ultimate if no one else has as much "moral knowledge" as it does - implying subjective value.
False dichotomy: you assume that only one entity can have "ultimate moral knowledge".
I'm sure the list goes on.
Definitions: You don't define what "eternal basis" is. You don't define what "greatness" is. You only equate them in the middle, ultimately equating them with God.
Strawman: You misrepresent the philosophical positions regarding morality. You claim that everyone else who disagrees with you would accept your premise.
Equivocation: Equate eternal basis with moral greatness with God with the God of Christianity (implicitly). Equating your moral greatness, which is based on knowledge of morality not obedience, while the common interpretation of morality is the opposite.
False assumptions: You assume the universe cannot be arbitrary. You assume the universe was created. You assume an entity created the universe. You assume morality needs your "eternal basis".
Hidden definition: You assume the "eternal basis" is a conscious observer in your definition of it requiring "knowledge" yet you make no such definition in your requirement of morality. You assume morality is objective but claim that ultimate moral greatness can only be ultimate if no one else has as much "moral knowledge" as it does - implying subjective value.
False dichotomy: you assume that only one entity can have "ultimate moral knowledge".
I'm sure the list goes on.
