Matthew 7:15
But beware of false prophets, who come to you in sheep's clothing, but inwardly they are rapacious wolves.
1 John 4:1
Beloved, believe not every spirit, but prove the spirits if they are of God: because many false prophets have gone out into the world.
Matthew 24:24
for false Christs and false prophets will rise up, and give great signs and wonders; so as to deceive even the elect, if possible.
Romans 16:18
For such do not serve our Lord Christ, but their own stomach; and through fair speeches and eulogies deceive the hearts of the innocent.
2 Corinthians 11:3
but I fear, lest, as the serpent beguiled Eve by his craftiness, your minds may be corrupted from the simplicity which is in Christ.
2 Corinthians 11:13-15
For such are false apostles, deceitful workers, transforming themselves into the apostles of Christ.
2 Peter 2:1
However there were indeed false prophets among the people, as there will also be false teachers among you, whosoever shall bring in destructive heresies, even denying the Lord who bought them, bringing on themselves swift destruction.
Revelation 19:20
And the beast, and the false prophet along with him, who wrought miracles in his presence, by which he deceived those having received the mark of the beast, and those worshiping his image; and the two were cast alive into the lake of fire which burns with brimstone.