Deuteronomy 18:20-22

Webster_Strongs(i)
  20 H5030 But the prophet H2102 [H8686] , who shall presume H1696 [H8763] to speak H1697 a word H8034 in my name H6680 [H8765] , which I have not commanded H1696 [H8763] him to speak H1696 [H8762] , or that shall speak H8034 in the name H312 of other H430 gods H5030 , even that prophet H4191 [H8804] shall die.
  21 H559 [H8799] And if thou shalt say H3824 in thy heart H3045 [H8799] , How shall we know H1697 the word H3068 which the LORD H1696 [H8765] hath not spoken?
  22 H5030 When a prophet H1696 [H8762] speaketh H8034 in the name H3068 of the LORD H1697 , if the thing H935 [H8799] doth not follow, nor come to pass H1697 , that is the thing H3068 which the LORD H1696 [H8765] hath not spoken H5030 , but the prophet H1696 [H8765] hath spoken H2087 it presumptuously H1481 [H8799] : thou shalt not be afraid of him.