In His teaching Jesus said, "Look out for the experts in the law of Moses, who like to walk around in long [flowing] robes and to receive special greetings at the open shopping markets

And [then] He said to them, "Be careful and guard yourselves against [practicing] all forms of greed, for a person's life does not consist of having a lot of possessions."

Beware that what was spoken by the prophets does not happen to you:

Watch out for the "dogs!" [Note: "Dogs" were viewed with disgust by the ancient Jews (Deut. 23:18; II Kings 8:13; Rev. 22:15), so the term is used here derogatorily for Jewish Christians who were trying to impose on the church the requirements of the law of Moses]. Watch out for the evil workers! Watch out for those who mutilate the body meaninglessly! [Note: Paul here alludes, in a derogatory wordplay, to the Jewish practice of circumcision].

Pay attention so that no one takes you [spiritually] captive through his philosophy and empty deception based on human tradition, according to the principles of the world and not according to Christ.

Therefore, dearly loved ones, since you know about these things ahead of time, be on your guard so that you are not led astray by the error of lawless people, and [thus] fall from your own stability [i.e., your safe or secure position in Christ].

False

And Jesus answered them, "Pay attention so that no one leads you astray [from the truth].

For false Christs and false prophets will appear and they will perform [miraculous] signs and [supernatural] wonders in order to lead astray [even] the elect, if possible.

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.

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.

But the beast was captured, along with the false prophet [See 16:13], who performed [supernatural] signs in his presence. [He had performed these signs] to deceive those who had received the mark of the beast and those who worshiped his statue. [See 13:15-16]. The beast and the false prophet were both thrown alive into the lake of fire that burns with sulphur.

Which

In His teaching Jesus said, "Look out for the experts in the law of Moses, who like to walk around in long [flowing] robes and to receive special greetings at the open shopping markets

Now I urge you, brothers, watch out for those who are causing divisions and occasions for falling [away from God over matters] contrary to the teaching you have learned, and withdraw from them [i.e., stop listening to their false teaching].

For such men are false apostles; they are deceitful workers, who disguise themselves as [true] apostles of Christ.

For [certain] false brothers, who were secretly brought in to observe us practicing our liberty in Christ Jesus [i.e., by not having Titus circumcised], attempted to place us [back] under the bondage [of Mosaic law keeping].

Then we will no longer be [spiritual] babies, tossed back and forth [by waves], and blown around by every wind of [false] teaching, [deceived] by the clever trickery of people using deceptive schemes.

Do not let anyone deceive you with empty words, for because of such things, the wrath of God will fall upon people who are disobedient [to Him].

Pay attention so that no one takes you [spiritually] captive through his philosophy and empty deception based on human tradition, according to the principles of the world and not according to Christ.

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.

[These people] maintain an appearance of being godly, but they have denied its power; [you should] turn away from such people.

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.

For certain men have secretly infiltrated [your ranks]; they are men who had been written about long ago that they should be judged [and condemned] for perverting the unearned favor of our God into [a license for] living unrestrained, indecent lives, and who deny [the identity and work of] our only Master and Lord, Jesus Christ.

Then I saw another [i.e., a second] beast coming up from the earth. He had two horns like a lamb and spoke like a dragon.

Are

[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].

And I saw that the woman was drunk on the blood of God's holy people and on the blood of those [who were killed] witnessing about Jesus. And when I saw her I was greatly amazed.

General references

And many false prophets will appear and will lead many people away [from the truth].