Some one's been drinking too much koolaid.
By what authority is a valid question. How do you prove that God gave someone the authority to speak or act in His Name?
The passage is speaking specifically of Jesus here, not to smith. But any words must be in accordance with the Bible. All prophecy must come to pass. - smith still left on the outside wanting in (Ac 20:29)
Hello jumping to conclusions does not make it so only bias!