I’ll try translate the block quotes I placed on before; if you don’t understand what I wrote before then I’ll try explain it again.
The reasons for this law that one must listen to the government laws are
a) because the whole population accept upon themselves to cooperate with the government (and therefore if one keeps money that doesn’t neccesarily belong to him but is still in accordance with the countries law, he will not transgress the prohibition of stealing because it is lawfully his).
b) this law isn’t necessarily saying that one must listen, but rather that the King has the rights to make laws and punish/expell you from the country if you do not cooperate.
c) There is a way of acquiring an object called “Kibbush Milchomoh”, which means that through war one can acquire the booty and spoils. It sounds like the king automatically owns everything using this Kinyan, and therefore can tell you what to do with your money.
There are those who say that this law only applies to things that early kings decreed on their countries, but a king has no rights to just make up his own decrees. Others hold that the king has rights to make his own decrees.
Others hold that this only applies to the sort of decrees that will profit the king such as tax and the likes, but not laws that get involved between you and our fellow countryman.
(if anything is not clear, please tell me)