1 John 2:18
Dear children, it is [now] the last hour [i.e., the final period of God's dealing with people on earth], and since you have heard that an antichrist [i.e., a person who is against Christ] is coming, even now [you should be aware that] many antichrists have [already] come. This is [one way] we know that this is the last hour.
1 John 4:3
But every spirit who does not proclaim [this truth about] Jesus is not [speaking] from God. And this [person] represents the spirit of the antichrist [See 2:18-22; II John 7], whom you have heard would come. Well, now he is already here!
Matthew 24:5
For many [false teachers] will come, claiming to be me, and saying, 'I am the Christ [i.e., God's specially chosen one]' and they will lead many people away [from the truth].
1 John 2:22
Who is the liar? It is the person who denies that Jesus [truly] is the Christ [i.e., God's specially chosen One]. This person is the antichrist [See verse 18]; he is the one who denies [the truth about] the Father and the Son.
2 John 1:7
For many deceivers have begun circulating in the world; they are those who do not confess that Jesus Christ has come [to earth] in a physical body. Such a person is the deceiver and the antichrist [See I John 2:18f].
Matthew 24:24
For false Christs and false prophets will appear and they will perform great [miraculous] signs and [supernatural] wonders in order to lead astray even the elect [i.e., God's people], if possible.
2 Peter 3:3
First of all, you should understand that, in the final days, mockers with evil desires will come [to you] saying, mockingly,
1 John 4:1
Loved ones, do not believe [the message of] every spirit [i.e., every person claiming to be a teacher], but test the spirits [i.e., require proof that they and their message are genuine] to see whether they represent God [or not], because many false prophets have begun circulating throughout the world.
Jude 1:18
for they were saying to you people, "In the last times [See I John 2:18; Heb. 1:1-2] there will be mockers [arise], who will live according to their [own] ungodly desires."
Matthew 24:11
And many false prophets will appear and will lead many people away [from the truth].
Mark 13:6
[For] many [false teachers] will come, claiming to be me, and saying, 'I am [the Christ] and they will lead many people astray.
Mark 13:21-22
And then if anyone says to you, 'Look, here is Christ,' or 'Look, there He is,' do not believe him.
John 21:5
So, Jesus said to them, "Young fellows, you have not [caught] any fish yet, have you?" They answered Him, "No, [we have not]."
Acts 20:29-30
[Because] I know that after I am gone [from here] there will be vicious wolves [i.e., ravaging false teachers] who will come in among you, and they will not spare the flock [i.e., the congregation].
2 Thessalonians 2:3-12
Do not allow anyone to deceive you in any way, for it will not occur until the rebellion comes first and the man of lawlessness becomes evident. [Note: This "rebellion" refers to a significant falling away from the teaching and practice of true Christianity (See I Tim. 4:1), characterized by the rise of an authoritarian religious leader]. This man is doomed to be destroyed
1 Timothy 4:1-3
Now the Holy Spirit specifically says that in later times [Note: "Later times" in the New Testament usually refers to the period following the first coming of Christ and the establishment of the church], some people will fall away from the faith [i.e., the true teaching of Christianity]. They will pay attention to deceitful spirits [i.e., lying people] and the teaching of evil spirits.
2 Timothy 3:1-6
But you should know this: There will be terrible times in the last days [of the Christian age].
2 Timothy 4:3-4
For the time will come when people will not tolerate sound teaching, but will assemble to themselves teachers who will satisfy what their "itching ears" want to hear.
Hebrews 1:2
[but] during these final days He has spoken to us through His Son [Note: This period refers to the Christian age (See Acts 2:14-36)], whom He appointed to be heir of all things [and] through whom He created the universe. [See John 1:3; Col. 1:16].
1 Peter 1:5
Through God's power you are protected by [your] faith, so that you can expect to be saved in the end.
1 Peter 1:20
For Christ was previously known [by God, even] before the world was created, yet was not fully revealed for your benefit until [these] final times.
2 Peter 2:1
But just as there were false prophets among the people before, there will also be false teachers among you [Christians]. They will privately teach harmful doctrines that destroy people [spiritually], by even denying [that Jesus is] the Master, [and thereby] destroying themselves quickly.