Maybe not. Since I can imagine absolute things, like the laws of logic, without the necessity of a God. So, if there exist at least one absolute thing that does not necessitate the existence of God, the argument will not obtain.And also if the existence of absolute morality is a good argument for the existence of a God.
If on the other hand, absolute morality would entail the existence of God, then you will have to provide evidence of the former. Otherwise, the argument would be as strong as saying: the existence of kryptonite might be a good argument for the existence of Superman.
Ciao
- viole