This was preached in the context of a service led by St. Mark's Mothers' Union to celebrate 140 years of that movement's existence.
The wellbeing of families is of great importance.
There is a big difference between our society and that of the Bible. A great thing about the story of Isaac and Rebecca is that they love each other.
Families exist to glorify God. We need families. God gave us one another. The New Testament is concerned to pass the faith on to the next generation. The Church is the means of passing the faith on.