To fail to take care of your own as we have opportunity is denying Christianity. It is denying the Christian faith, and we are then worse off than the unconverted. This is a pretty strong statement. A person who meets the criterion of this verse has disavowed Christianity; he is walking away from his responsibility to take care of his own first.
We can also apply the principle in this verse to the church. Combining this verse with Galatians 6:9-10, it is abundantly clear that God thinks that, even in the best of times, the brethren have first priority, not the world. If there was ever a time for doing good to the brethren, the time is now. In its broader context, Galatians 6:1-10 has spiritual matters more directly in mind than filling physical needs. This does not deny that there are times to help out physically, but the chapter begins with, "If one sees a brother in a fault. . . ." This is the real foundation of his charge in verses 9 and 10, spiritual matters, and that is exactly where the church's problems lie.
John W. Ritenbaugh
What Is the Work of God Now? (Part 4)
A person who has properly obeyed his parents in childhood later expresses his honor for them in a deeper appreciation of the comforts and training they provided him as a child. This honor expresses itself in courtesy, thoughtfulness, and kind deeds. Any parent, especially a widowed parent, should be repaid by his children for the care given them as they grew up. Even in His dying moments, while suffering an agonizing death, Jesus honored and loved His mother by making provision for John to care for her after His death (John 19:26-28). God our Father is well pleased with us when we obey this vital commandment (Colossians 3:20).
Martin G. Collins
The Fifth Commandment
John W. Ritenbaugh
The Christian and the World (Part 8)
Other Forerunner Commentary entries containing 1 Timothy 5:8:
2 Thessalonians 3:2