But refuse younger widows, for when they have grown wanton against Christ, they desire to marry;

 They must have been hospitable to strangers. Inns in the ancient world were notoriously dirty, expensive and immoral. Those who opened their homes to the traveller, or the stranger in a strange place, or to young people whose work and study took them far from home, were doing a most valuable service to the community. The open door of the Christian home is always a precious thing. 