Ecclesiastes 9:7–10: Enjoy the Life God Gives
Ecclesiastes 9:7–10 does not promise a happy life; it commands God's people to receive food, drink, marriage, and work as gifts under the sun. The ground of that joy is God's acceptance, not favorable circumstances.
Ecclesiastes 5:18–20: Enjoyment as God's Gift
Ecclesiastes 5:18–20 presents enjoyment of ordinary food, drink, and work as good and proper, yet as a portion God gives rather than a reward earned. The passage points to gratitude for gifts received from God's hand, not a technique for manufacturing happiness.