Listen to the Psalmist again. Except the Lord keep the city, the watchman waketh but in vain. No ancient city was safe from attack no matter how thick its walls nor alert its guards unless God was protecting it. Likewise, no home is safe from the attack of Satan unless it has been consciously committed to the Lord, unless he has been put in charge. The homes where Jesus Christ reigns as Lord in the lives of every family member are the homes that will tower above the rest in love, serenity, happiness, mutual concern one for another, and the ability to adjust to people outside the home.
Some folks think there are other ways to produce a happy home.
Provide all the material things of this world for your children. Maybe that will make them happy. If dad doesn't make enough money to do it, mom goes to work too. Read on in Psalm 127. The bread of sorrows is simply bread secured through toil and trouble.