[people will be] treacherous, 2 Timothy 3:4a
This has the idea of being traitorous. We haven’t come to those days quite yet, but there will be times when fellow “brethren” betray their friends. It will probably be much more subtle than that though. We see it already in the mainline denominations regarding major social issues of the day: abortion, feminism, homosexuality, transgenderism. When persecution comes to the United States, we’ll see much more betrayals within our own ranks. Sadly.
Know that it’s coming, and recognize it as such. Pray that those in your immediate circle of influence will also be able to recognize it and prepare against it. Of course, in doing so you’ll be regarded as a conspiracy theorist. In other parts of Scripture, the Lord said there would be “a falling away” (2 Thessalonians 2:1-3). Recognizing it is important.
Keeping close to God is our only course of action to take when we see it happening. And it’s our only course of action now as well.