"Come out of her, my people,
lest you share in her sins,
and lest you receive of her plagues.
For her sins have reached to heaven."
Revelation 18:4-5

"For the time will come

when they will not endure sound doctrine,
but according to their own desires,
because they have itching ears,
they will heap up for themselves teachers,
and they will turn their ears away from the truth..."
2nd Timothy 4:3-4

"So they asked him, saying, 

'Teacher, but when will these things be? 
And what sign will there be 
when these things are about to take place?'
And he said: 
'Take heed that you not be deceived...'"
Luke 21:7-8

The first sign of the end of the age is:

rampant deception.