'Happy' in the Bible

There was no end to all of his subjects or to all of the people who had come before them. But those who come along afterward will not be happy with him. This is also pointless and a chasing after wind.

So then I recommended enjoyment of life, because it is better on earth for a man to eat, drink, and be happy, since this will stay with him throughout his struggle all the days of his life, which God grants him on earth.