To be offended is to stumble at the Word which is to be drawn away into the apostasy which culminates in this final generation into the multitudes bowing before and worshipping the false messiah. Again, our brothers and sisters who are entrapped in the seduction of the spurious messiah will believe that the true Christ has returned.Matthew 24:10
And then shall many be offended, and shall betray one another, and shall hate one another.
offended, skandalizo, skan-dal-id'-zo, Greek 4624; ("scandalize"); from Greek 4625 (skandalon); to entrap, i.e. trip up (figurative stumble [transitive] or entice to sin, apostasy or displeasure) :- (make to) offend.
betray, paradidomi, par-ad-id'-o-mee, Greek 3860; from Greek 3844 (para) and Greek 1325 (didomi); to surrender, i.e. yield up, intrust, transmit :- betray, bring forth, cast, commit, deliver (up), give (over, up), hazard, put in prison, recommend.
hate, miseo, mis-eh'-o, Greek 3404; from a primary misos (hatred); to detest (especially to persecute); by extension to love less :- hate (-ful).
Many false prophets (preachers, teachers) shall arise and deceive many by teaching the traditions of men instead of God's Word and thus causing our people to become deceived... which is to go astray from His Word, to be drawn away from the truth of God's Word, and thus be spiritually seduced by the false messiah. And many false prophets shall rise, and shall deceive many.
deceive, planao, plan-ah'-o, Greek 4105; from Greek 4106 (plane); to (properly cause to) roam (from safety, truth, or virtue) :- go astray, deceive, err, seduce, wander, be out of the way.
Iniquity is lawlessness which is a violation of the laws of God caused by following the traditions of men which even seem so right in the eyes of man, but the end thereof are the ways of death (Prov. 14:12). Though many of our brothers and sisters profess Christ and claim they believe in God's Word, it is because of their ignorance of the Word that they have been drawn away and therefore do not know Him. In other words, it is because the do "err" that they do those things which are contrary to His Word which is what iniquity is... believing and following the traditions of men, i.e. Churchianity. To wit, the "love" Christ is talking about in verse 12 is not "phileo" but "agape", the love of the truth of God's Word and the doing of His Will. And because iniquity shall abound, the love of many shall wax cold.
You may recall at the beginning of this chapter when the disciples asked Christ concerning the "end of the age", we learned that the word "end" is "telos" in Greek. The end of this flesh age is not when Satan as the false messiah comes at the sound of the 6th Trump, but rather when Jesus Christ the true Messiah comes at the sound of the 7th Trump. We will also discover later in this chapter that it is not the first woman taken in the field who is saved for she is seduced by the false-christ, as in wed to the false bridegroom, the first supernatural entity to appear as Messiah. No, it is rather he or she who "endures" throughout the tribulation of Satan and remains true and steadfast in overcoming the beast that shall be saved.Matthew 24:13 But he that shall endure unto the end, the same shall be saved.
"Tarry behind!" Yes, it is written that he who is "Left Behind" and remains as a chaste virgin (2 Cor. 11:2) unto the coming of the Lord that shall be saved. So BEWARE! Many false prophets shall rise (and many already have) and shall deceive many, the majority of Christians, into accepting the first messiah who comes to this earth... the one who shall deceive the whole world with his signs and great wonders into believing he is God. Again, don't let some foolish man or some book or movie deceive you unless you want to join them in their ignorance of God's Word.endure, hupomeno, hoop-om-en'-o, Greek 5278; from Greek 5259 (hupo) and Greek 3306 (meno); to stay under (behind), i.e. remain; figurative to undergo, i.e. bear (trials), have fortitude, persevere :- abide, endure, (take) patient (-ly), suffer, tarry behind.
Understand that the Lord cannot return at "any moment" because the next two verses tell us what yet must happen before the end (telos) comes, before Jesus Christ returns and destroys the stones of the temple and saints of the most high take the kingdom for ever and ever.
This happens when some of God's elect, those certain ones chosen before the foundation of this earth age who have a destiny to fulfill (Eph. 1:4), are delivered up to give His witness and testimony before the kings and rulers of all nations.Matthew 24:14
And this gospel of the kingdom shall be preached in all the world for a witness unto all nations; and then shall the end come.
 When ye therefore shall see the abomination of desolation, spoken of by Daniel the prophet, stand in the holy place, (whoso readeth, let him understand:)
noieo, noy-eh'-o, Greek 3539; from Greek 3563 (nous); to exercise the mind (observe), i.e. (figurative) to comprehend, heed :- consider, perceive, think, understand.
Daniel 11:31And arms shall stand on his part, and they shall pollute the sanctuary of strength, and shall take away the daily sacrifice, and they shall place the abomination that maketh desolate.
Daniel 11:36And the king shall do according to his will; and he shall exalt himself, and magnify himself above every god, and shall speak marvellous things against the God of gods, and shall prosper till the indignation be accomplished: for that that is determined shall be done.
2 Thes. 2:4Who opposeth and exalteth himself above all that is called God, or that is worshipped; so that he as God sitteth in the temple of God, shewing himself that he is God.
 Remember ye not, that, when I was yet with you, I told you these things?