1 Timothy 5:8-10

But if anyone does not provide for his own, and especially for those of his household, he has denied the faith and is worse than an unbeliever. A widow is to be put on the list only if she is not less than sixty years old, having been the wife of one man, having a reputation for good works; and if she has shown hospitality to strangers, if she has washed saints' feet, if she has assisted in those in distress, and she has devoted herself to every good work.

If people cannot take care of their family, they are unfit for God and faith. They are of no difference to unbelievers because they can do that also. Part of living our life for Christ includes taking care of the family that God has bestowed on us. As men and women of Christ, we need to care for our families. Good works do nothing without Jesus. I heard a sermon that said that Jesus plus nothing=salvation.