Marriage is part of God's plan for the salvation of the world. From the beginning of the earth when Adam and Eve were created marriage has been art of God's plan. This is how His kingdom is built. Today, in the first reading, the people of Israel have a choice to make. They have been tempted by the false gods of the people who surround them.
Married couples face the very same decision today.
False gods surround us. The gods of sex, money and power call out to us like the sirens of Odysseus. Joshua sets the standard for us today. This is a beautiful example for married couples and single parents. My household will serve the Lord.