One group of people believe that it is all about what you believe and that is what mainly matters in this life. Others believe that it is all about what you do and that's what matters. These two groups then try to convince others of the same thing. They try to get them to believe in Jesus or they try to get them to act like Jesus. But is that really how Jesus Himself lead people? Paul doesn't think so and writes to Timothy to explain how it really works.
It takes both truth and action to save lives.
1 Timothy 4:16