וְהָיָ֗ה הָאִישׁ֙ אֲשֶׁ֤ר לֹֽא־יִשְׁמַע֙ אֶל־דְּבָרַ֔י אֲשֶׁ֥ר יְדַבֵּ֖ר בִּשְׁמִ֑י אָנֹכִ֖י אֶדְרֹ֥שׁ מֵעִמּֽוֹ׃
And it shall come to pass, that whosoever will not hearken unto My words which he shall speak in My name, I will require it of him.
Find Mishnaic references to Deuteronomy 18:19: , passages from the 63 tractates of the Mishnah.