Commentaries:
Paul is telling Timothy to command those who are teaching false doctrine to stop the fables and the endless genealogies. They do not edify. The purpose or the goal is to have a pure heart, faith, and a good conscience before God. That is what God wants from us. Paul wants Timothy to expand his horizons'to stop and think of what God wants from him. In verses 6-7, we can see quite a few did not do this.
John O. Reid
Don't Take God for Granted
Other Forerunner Commentary entries containing 1 Timothy 1:3:
Acts 20:28-31