You don’t know what “constitution” or “union” means. They are clearly defined and won’t change. You might also look at the meaning of “perpetual” and “more perfect.”
You might look up the meaning of "the laws of nature and of nature's God..."
I believe that beats your claim of "Perpetual", which is a word that isn't even in the US Constitution.
The United Kingdom was a "Perpetual Union" too.