I have been working in some very heavy, trying circumstanes.
All of us have to deal with the fact that there are men and women who will betray their trust, who will undermine our efforts subtily while pretending to be our friends.
First of all, we must remenber that our safety and security depends on Him who has been from the beginning (1 John 2: 15):
"In the Beginning was the Word, and the Word was with God, and the Word was God." (John 1:1)
"10For this is the covenant that I will make with the house of Israel after those days, saith the Lord; I will put my laws into their mind, and write them in their hearts: and I will be to them a God, and they shall be to me a people:" (Hebrews 8:10)
He is our protection!
Now, notice how John the Beloved takes on anti-Christs and other liars who come into the midst of the Body of Christ.
There are indeed many anti-Christs. There will be men and women who come into our ranks who do not believe what we believe.
Our faith is in Jesus!
That is what He asks all of us to do! That is the one work that matters!
"The is the work of God, that you believe on Him whom He hath sent" (John 6:29)
So, what happens when we who believe on Him stand true to His Word and trust Him?
Those who oppose Himself will go away.
Bad people who want to undermine the truth and the community of saints will soon be forced to reveal themselves. They won't stick around, they won't stand by, for they will not "continue with us."
Keep seeing Jesus, and He who is the Light of the World (John 8:12) will expose the darkness--even in our midst--to the light.