I do not understand how anyone's labour can be considered their own when it is God's. There is nothing that does not belong to God. Assuming you accept the concept of ownership at all.
If you do not understand or dispute the concept of God, I refer you to one of his principal attributes, his omnipresence, meaning the whole of existence and use that concept instead. You may dispute whether the whole of existence is intelligent but to my mind that is easily proven. The other synonym is love, where loving in the sense of being cooperative and helpful is another meaning I would accept for God, Two separate aspects of the God I believe in.
Property is a human invention that implies ownership when we own nothing. We are merely stewards of existence and should treat it with respect,
which no one does well and most do not even try to do.
Looking at it differently, this figment of our culture's imagination, property, is mainly inherited.
Most of the work done to establish the wealth my life relies on is in ancient institutions, such as the National Health Service and the Bank of England two national institutions from the nation where I reside, the United Kingdom, that make my life infinitely richer than anything I do. The House I live in, the majority of my wealth, was built by a previous generation.
I think, my generation is the first in history where technological advances were enough that many technologies came and went within one lifetime: cassette recorders; video cassettes; even DVDs and CDs are on the wane. So there are some things I own because of the labour of my peers, but they are few and far between.
Even considering that most of my wealth is inherited, without the scientific advances of previous generations, none of those technologies would have been possible.
My labour is owned by those I serve. not me.
I have serious issues with that quote:
he property which every man has in his own labour, as it is the original foundation of all other property, so is the most sacred and inviolable
At its most concise one ends up with:
The property of a man's labour is most sacred and inviolable.
Which property? Its sweatiness, its fastidiousness, the word property has at least two meanings that could apply
I am taking the latter as the figment of our culture's imagination, ownership, which I understand the quote referred to.
The most sacred thing is God. Both, the whole of existence and love are more sacred than the ownership of a man's labour. So it is certainly not the most sacred.
As mentioned before, a person's labour is owned by his owner. The Roman Empire, The British Empire and the USA were all based on slavery.
A slave's labour is not his own, but his owner's. So that ownership is very easily violated so the second clause is just wrong.
I am afraid I find that quote nonsense on so many levels.