According to God. Where did I say I determined that? Why the adversarial 'tude? What exactly are you contending that I said incorrectly? What don't you agree with what I said?
Christ did not establish a country nor write a constitution, nor make you the supreme court.
Did I say that Jesus "established a country"? He WILL, however, establish a kingdom one day here and He will rule it in righteousness and with rod a of iron. Do you not believe that? He also ensured that the word of God - the FULL counsel of God - was preserved and the continued revelation by the Holy Spirit, who carried along "holy men of God", was written and preserved. He promised His disciples that the Holy Spirit would "bring to your remembrance everything that I have said to you" (John 14:26). They already had the example of the Old Testament prophets writing down the revelation they received from God, why wouldn't they also do the same?
The Holy Scriptures are our authority for determining what is the truth of our faith. God did a pretty good job of speaking plainly and succinctly so that nobody has any excuse for not knowing His will or His plan of salvation. Anyone who claims to be speaking the truth must and should be examined by God's word to see if they are right. I almost understand the resistance to accepting this fact - being as some hold to a religion that views Scripture as a servant to it rather than the other way - but they would be wrong to view Divinely-inspired Scripture that way. They are truly fighting against God Himself.
When the Holy Scriptures type the replies and arguments and beliefs here, I'll believe it is not you that is the authority.
Until then, I hope you will take a second to reflect on that and realize how incredibly and obviously false the foundation of your position is.