The statue is essentially whatever we see as the statue.
The lumps of clay are essentially what we see as the lumps of clay.
Thus, the idea that the statue is made of the lumps of clay is essentially an idea, our idea.
If I see something as a statue, I will believe I speak the truth if I say "There is a statue". Hence, our view of truth as correspondence between what we say and what there is, except that this is not necessarily what there is, only what we see and thereby think that there is.
This explains why it is possible that different people disagree as to what is true.
And it is a fact we all accept as true that it is possible that different people disagree as to what is true. Thus, we have to accept either that we alone know what we are talking about, or that it is possible that we don't know what we are talking about.
We all usually believe that we alone know what we are talking about when we talk about our own mind, what we feel, what we remember, what we see.
For the world outside our mind, we usually believe that it is possible that we don't know what we are talking about in at least some cases, and possibly in most cases. We can also accept that we never know anything about the world outside our mind and that we only have beliefs.
In this last case, problem solved. We don't need any theory of truth. We can choose to speak truthfully or falsely about the contents of our own mind and there is nothing mysterious or fuzzy about this. And then, whatever we say about the world outside our mind is just what we believe, and we have to accept that we don't know whether what we believe corresponds to the world outside.
If we want to claim that it is possible to know that we speak the truth about the world outside, then we are condemned to try and rationalise this claim. This is what some philosophers have been trying to do for the last 3,000 thousand years, without much success, and most philosophers seem to believe that this is a lost cause.
The statue is essentially whatever we see as the statue.
The lumps of clay are essentially what we see as the lumps of clay.
The idea that the statue is made of the lumps of clay is essentially an idea, our idea.
We can speak truthfully of our ideas, but that in itself does not imply that we are speaking truthfully about the world outside where we believe the statue and the lumps of clay are. "Does not imply" because we only believe that the statue and the lumps of clay are in the world outside. Further, probably most philosophers nowadays admit that the statue is not anything in the world outside, that it is essentially within our mind. They also usually accept that we only know our own mind and nothing of the world outside, not even that it exists to begin with. We can only believe.
Still, some philosophers want to rationalise the idea that we can know things in the world outside, and this requires some disgraceful contorsions. In particular, this requires that we ignore the idea that we can only be said to know if it is not possible that we should be in error, and that this only happens when we talk about the present contents of our own mind, as such, which is not much.