1 Tim. 5:7-8 - Recognize Your Responsibility

7 Reinforce these commands, so that they will be beyond reproach.
8 But if someone does not provide for his own, especially his own family, he has denied the faith and is worse than an unbeliever.

Beyond Reproach

Vs. 7: Reinforce these commands, so that they will be beyond reproach.

"Reinforce these commands" - Paul is issuing a command to Timothy, "Teach and command these things to the church body."

"will be beyond reproach" - If the believers in the church follow the commands, they will be living their faith, and there will be no condemnation. This is not referencing loss of salvation, but judgment of the believers in regards to 'working out their salvation.' See: 2 Cor. 5:10. We have a responsibility to live for Christ, and will be held accountable.

Vs. 8: - But if someone does not provide for his own, especially his own family, he has denied the faith and is worse than an unbeliever.

"does not provide for his own..." - Whether the church members were Jewish or Gentiles, they have been taught how to live their faith. Specifically, "Do not let widows suffer!" If the widows have no family, the church as a body steps in and provides care. If the widow has family - brothers, sisters, sons or daughters - the family steps up. This is a follow-up to verses 4 and 6 above. It pleases God if family takes care of family, not putting a burden on the church (vs 4). Verse 6 was stern, a warning to avoid self-love and pleasure seeking. (The opposite of the modern mantra: "You can't take care of anyone else unless you take care of yourself.")

"denied the faith... worse than an unbeliever." - Why do you suppose the statement "worse than an unbeliever" is there? I think it is because now you know better. The unbeliever has not been taught "Love one another, just as Christ has loved you" John 13:34, 15:12. Again, taking care of the helpless - widows and orphans - is not just a New Testament phenomenon, but part of the Judeo-Christian heritage. This was mentioned in verse 3 above. We have a great responsibility to live for Christ. See: Luke 12:48.
Churches can deny the faith by not caring the needy fellow believers, and “be worse than unbelievers”. Let's take a look at the church in Sardis: Christ warns them to remember what they heard and received, to repent and obey. See: Rev. 3:1-4. In an adjacent passage the church in Philadelphia was under siege, and they obeyed the commands with the little strength they had. Christ approved! See: Rev. 3:8.