So be careful how you listen. Those who have understanding will be given more. But those who do not have understanding, even what they think they have will be taken away from them.”
because the time will come when people will not listen to the true teaching but will find many more teachers who please them by saying the things they want to hear.
These enemies of Christ were in our fellowship, but they left us. They never really belonged to us; if they had been a part of us, they would have stayed with us. But they left, and this shows that none of them really belonged to us.
I know what you do, how you work hard and never give up. I know you do not put up with the false teachings of evil people. You have tested those who say they are apostles but really are not, and you found they are liars.