Deuteronomy 13:1-3
If there arise among you a prophet, or a dreamer of dreams, and gives you a sign or a wonder,
Torrey's Topical Textbook—AKJV

Deuteronomy 18:22
When a prophet speaks in the name of the LORD, if the thing follow not, nor come to pass, that is the thing which the LORD has not spoken, but the prophet has spoken it presumptuously: you shall not be afraid of him.
Torrey's Topical Textbook—AKJV