argh! This is the point: God could create a rock so big that He couldn't lift it, but then He would cease to be all-powerful, hence THE LAW prevents Him from doing it.
If you have a problem with that, take it up with the Law, not with God!
I suggest exploring a similar question, which is designed to expose the fact that the very premise of a contradiction is an anathema to God:
Can God create a contradiction?
The answer is "no". Even mentioning contradiction in the same sentence as God is against the Law, and therefore sin. It's invalid before you even start. Of course you are tempted to mention contradiction in connection with God, but that is not because God is weak or some such thing, it is because you are a sinner.
These are heavy words for someone who has no faith, but it is the truth. The sophistry of contradictions is not of God. God cannot create without the Law since what God creates must be for all time and the only way God can create for all time is if the Law sustains what God creates for all time. Hence there is nothing God creates that is apart from the Law, hence IF THE LAW DOES NOT ALLOW GOD to create CONTRADICTION God cannot do it. THAT IS the Law.
Firstly, it's suggestive of inconsistencies to speak of directly creating a contradiction. What would be an object but which is described by a statement which has an internal contradiction is not an object to be created.
And again perhaps we should not speak of the entity which might be described in part by the concept definitively or personally, as though it must exist and we have had a personal interaction with it, even as there's no reason for it to exist.
And then there's that the phrasing, specifically of referring to everything as 'the Law' is a phrasing less designed to convey information and more to create some emotional impact in the reader, or to suggest one in the writer. And then of course, there's the use of the phrase 'the Law' to refer not only to a description of a possible entity, perhaps without the contradiction, but also of a command that people never talk about it. But as below, that you'd prefer it to be that way is irrelevant.
Furthermore, while you, as you have apparently thoroughly personified the possible entity, may very much not like anyone to point it out: There is still a contradiction between omnipotence and to be able to create anything, or an internal one in the concept of omnipotence.
That you really don't like this to be pointed out, because it might be construed as a 'weakness' is irrelevant. That it might've been anathema to the entity in some way is also irrelevant. That it is not 'of God' is also irrelevant is still present.
This is not to say that there is not a similar concept, of a god, which does not contain the contradiction, and indeed, I have already stated it.
But similarly to before, while the concept of omnipotence has this internal contradiction, an imagined entity which is not all-powerful but rather most powerful, or which is merely defined as having various abstract and ephemeral abilities, doesn't involve this particular contradiction.
I would say the above is a better way to describe it, for it's more clear (far, far more clear), and the one who wrote it doesn't do so in concert with various unjustified and mostly irrelevant things. Or in concert with saying that the topic should never be considered.