bible verse about deception in the last days   
 Matthew 24:3
Matthew 24:24-25
"For there shall arise false Christs, and false prophets, and shall shew great signs and wonders; insomuch that, if it were possible, they shall deceive the very elect. Behold, I have told you before"
Matthew 24:4-5
"And Jesus answered and said unto them, Take heed that no man deceive you. For many shall come in my name, saying, I am Christ; and shall deceive many"
Matthew 7:15
"Beware of false prophets, which come to you in sheep's clothing, but inwardly they are ravening wolves"
1 John 4:1
"Beloved, believe not every spirit, but try the spirits whether they are of God: because many false prophets are gone out into the world"
2 Timothy 3:13
"But evil men and seducers shall wax worse and worse, deceiving, and being deceived"
1 Timothy 4:1
"Now the Spirit speaketh expressly, that in the latter times some shall depart from the faith, giving heed to seducing spirits, and doctrines of devils"
2 Corinthians 11:3
"But I fear, lest by any means, as the serpent beguiled Eve through his subtilty, so your minds should be corrupted from the simplicity that is in Christ"
Matthew 24:11
"And many false prophets shall rise, and shall deceive many"
Mark 13:22 
"For false Christs and false prophets shall rise, and shall shew signs and wonders, to seduce, if it were possible, even the elect"
2 Corinthians 11:13-15
"For such are false apostles, deceitful workers, transforming themselves into the apostles of Christ. And no marvel; for Satan himself is transformed into an angel of light. Therefore it is no great thing if his ministers also be transformed as the ministers of righteousness; whose end shall be according to their works"
2 Timothy 4:3-4
"For the time will come when they will not endure sound doctrine; but after their own lusts shall they heap to themselves teachers, having itching ears; And they shall turn away their ears from the truth, and shall be turned unto fables"
Revelation 21:8
"But the fearful, and unbelieving, and the abominable, and murderers, and whoremongers, and sorcerers, and idolaters, and all liars, shall have their part in the lake which burneth with fire and brimstone: which is the second death"
1 John 2:18
"Little children, it is the last time: and as ye have heard that antichrist shall come, even now are there many antichrists; whereby we know that it is the last time"
Matthew 24:34
"Verily I say unto you, This generation shall not pass, till all these things be fulfilled"