It creates more happiness than any other specific factor, and it generates more heartache than any other specific factor. It brings more peace than any other specific factor, and it causes more anger than any other specific factor. It nurtures spiritual development as nothing else does, and it opposes spiritual development as nothing else does. Marriage causes joy or sorrow, causes happiness or heartache, brings peace or generates anger, and either nurtures or opposes spiritual development. Add to those truths these insights.
Every good marriage can be better than it is.
Every bad marriage can be worse than it is. Every good marriage has the potential of becoming a nightmare. Every bad marriage has the potential of becoming a powerful blessing. Only the Old Testament gives us details about specific marriages. The New Testament doesn't give details about specific marriages.