'Happiness' in the Bible

And if he lives a thousand years twice, but does not experience happiness, do not both go to the same place?

For what advantage has the wise man over the fool [for being worldly-wise is not the secret to happiness]? What advantage has the poor man who has learned how to walk [publicly] among the living [with men’s eyes on him; for being poor is not the secret to happiness either]?

Go then, eat your bread in happiness and drink your wine with a cheerful heart; for God has already approved your works.

When all has been heard, the end of the matter is: fear God [worship Him with awe-filled reverence, knowing that He is almighty God] and keep His commandments, for this applies to every person.