I assumed they meant a government that does the right thing, but after searching and searching, I still can’t find anything that states that in the Bible. I guess I posted in search of someone who can point me to the section of the Bible that says “only if the government is just”
A lot of things in the Bible are for us to discern. For instance it tells us that Solomon had many wives and concubines, but doesn’t tell us whether or not that was a good thing. Today we assume it’s a bad thing. In fact David and Solomon were pretty rotten guys in a lot of ways by modern Christian standards.