But if any widow has children or grandchildren, let them learn first to show piety towards their own family, and to repay their parents, for this is{TR adds "good and"} acceptable in the sight of God.
This whole discussion of widows appears to focus on the younger widows in particular. They may be the same women Paul spoke of in 2 Timothy 3:6-7 who were responding positively to the false teachers. This may explain the surprising length of the section. This is the most extensive treatment of a group in the whole epistle.