Keep the Faith (1 Timothy 4:1-16)

Chapter 3 ended on a high note with a beautiful hymn declaring the glory of the church and her Savior. But chapter 4 brings us back down to earth, so to speak, with a grave warning about those who fall away from the faith. How should Timothy and the saints in Ephesus to guard themselves and minister to others in light of this? And how can we watch out for this ourselves and for one another?