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."
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,
Acts 20:29
[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 Timothy 4:3
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.
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.
Jude 1:16
These people are gripers and complainers, living according to their own [evil] desires, whose mouths speak boastfully, and who show partiality [toward certain people] to gain some advantage.
1 Timothy 4:1-2
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 3:1-5
But you should know this: There will be terrible times in the last days [of the Christian age].
2 Timothy 3:13
But evil people and impostors will go from bad to worse [in their behavior], deceiving people and being deceived by them.