After encouraging Timothy on what he should be doing as a minister in the church in Ephesus, Paul turns briefly to what he should not be doing, and gives the example of a couple of men who fit the description of the false teachers.
See this passage for yourself at 2 Timothy 2:16-18:

Paul just spent the previous verses explaining to Timothy what he should be doing as a minister, as a believer. He now turns to what Timothy should avoid. This is a pretty strong contrast to what the description of a workman approved by God should look like.
Godless chatter
The first thing he mentions here is “godless chatter.” He has already spoken of this to Timothy, in 1 Timothy 6:20 (1 Timothy 1:6 and Titus 3:9 also convey this idea). Paul’s first word in this statement is the word “avoid.” This is a pretty strong command, telling Timothy that he should do whatever it takes to stay away from such a thing. But just what exactly is this? The Greek word literally means “profane and worthless, empty noise.” These false teachers are using a lot of empty speech to spread their teachings. Look at verse 18 for an example, referring to how the false teachers handled the resurrection. They said that it was already past. Such teaching is nothing more than empty speech. But behind this chatter, the philosophical implications were powerful, and once they were accepted, they robed the gospel of its power.

