Matthew 7:15
"Beware of the false prophets who come to you in sheep's clothing, but within they are ravening wolves.
Matthew 24:11
Many false prophets will rise up and mislead many;
Matthew 24:24
For false christs and false prophets will arise, and will work great signs and wonders, so as to mislead, if it were possible, the very elect.
2 Timothy 3:8
As Jannes and Jambres withstood Moses, so also do these men withstand the truth; being corrupt in mind and worthless in all that concerns the faith.
2 Timothy 4:14-15
Alexander, the coppersmith, manifested bitter hostility toward me. The Lord will requite him according to his works.
1 John 5:16
If any one sees his brother committing a sin that is not deadly, he shall ask, and God will give him life, for any one who is not committing a deadly sin. There is a deadly sin; concerning that I do not say that he should pray.
Revelation 19:20
And the beast was seized, and with him the false prophet who performed miracles in his presence to deceive those who had received the brand of the beast, and those who worshiped his image. The two were thrown alive into the lake of fire, blazing with brimstone.