Do you agree with the quote?
Yes
Would a slave-owning nation be a "Paradise"?
No.
I see no rules governing the treatment of slaves in the Constitution,
Article I Section 2. Slaves are to be treated as "three fifths of all other Persons" for the purpose of determining state population for representation in the House of Representatives.
So from your answers, you agree with Adams that a nation using the Bible as its only law book would be a paradise.
The Bible assumes that people will own slaves and lists certain rules as to their treatment and disposition.
Yet you don't agree that a slave-owning nation would be a paradise.
Okay.