18:20 “But if any prophet presumes to speak anything in my name that I have not authorized ¹  him to speak, or speaks in the name of other gods, that prophet must die. 18:21 Now if you say to yourselves, ²  ‘How can we tell that a message is not from the Lord?’ ³  – 18:22 whenever a prophet speaks in my ⁴  name and the prediction ⁵  is not fulfilled, ⁶  then I have ⁷  not spoken it; ⁸  the prophet has presumed to speak it, so you need not fear him.”