Matthew 24:5
For many will come in My name, claiming, ‘I am the Christ,’ and will deceive many.

Luke 21:8
Jesus answered, “See to it that you are not deceived. For many will come in My name, claiming, ‘I am He,’ and, ‘The time is near.’ Do not follow them.

1 John 2:18
Children, it is the last hour; and just as you have heard that the antichrist is coming, so now many antichrists have appeared. This is how we know it is the last hour.

1 John 4:1
Beloved, do not believe every spirit, but test the spirits to see whether they are from God. For many false prophets have gone out into the world.

2 Thessalonians 2:3-4
Let no one deceive you in any way, for it will not come until the rebellion occurs and the man of lawlessness—the son of destruction—is revealed. / He will oppose and exalt himself above every so-called god or object of worship. So he will seat himself in the temple of God, proclaiming himself to be God.

2 Peter 2:1
Now there were also false prophets among the people, just as there will be false teachers among you. They will secretly introduce destructive heresies, even denying the Master who bought them—bringing swift destruction on themselves.

Acts 20:29-30
I know that after my departure, savage wolves will come in among you and will not spare the flock. / Even from your own number, men will rise up and distort the truth to draw away disciples after them.

2 Corinthians 11:13-15
For such men are false apostles, deceitful workers, masquerading as apostles of Christ. / And no wonder, for Satan himself masquerades as an angel of light. / It is not surprising, then, if his servants masquerade as servants of righteousness. Their end will correspond to their actions.

Jeremiah 14:14
“The prophets are prophesying lies in My name,” replied the LORD. “I did not send them or appoint them or speak to them. They are prophesying to you a false vision, a worthless divination, the futility and delusion of their own minds.

Deuteronomy 13:1-3
If a prophet or dreamer of dreams arises among you and proclaims a sign or wonder to you, / and if the sign or wonder he has spoken to you comes about, but he says, “Let us follow other gods (which you have not known) and let us worship them,” / you must not listen to the words of that prophet or dreamer. For the LORD your God is testing you to find out whether you love Him with all your heart and with all your soul.

Ezekiel 13:6-7
They see false visions and speak lying divinations. They claim, ‘Thus declares the LORD,’ when the LORD did not send them; yet they wait for the fulfillment of their message. / Haven’t you seen a false vision and spoken a lying divination when you proclaim, ‘Thus declares the LORD,’ even though I have not spoken?

Matthew 7:15
Beware of false prophets. They come to you in sheep’s clothing, but inwardly they are ravenous wolves.

2 Timothy 3:13
while evil men and imposters go from bad to worse, deceiving and being deceived.

Revelation 13:11-14
Then I saw another beast rising out of the earth. This beast had two horns like a lamb, but spoke like a dragon. / And this beast exercised all the authority of the first beast and caused the earth and those who dwell in it to worship the first beast, whose mortal wound had been healed. / And the second beast performed great signs, even causing fire from heaven to come down to earth in the presence of the people. ...

Revelation 19:20
But the beast was captured along with the false prophet, who on its behalf had performed signs deceiving those who had the mark of the beast and worshiped its image. Both the beast and the false prophet were thrown alive into the fiery lake of burning sulfur.