Solomon's Main Messages in The Book of Ecclesiastes

Sermon 1: The vanity of human wisdom, Sermon 2: Appreciate the divine laws governing life, Sermon 3: There is no fulfillment in any earthly pleasures or wealth, Sermon 4: God will deal with the worlds injustices, Conclusion: fear the Lord and to obey his word.

Link: https://bible-history.com/studybible/Ecclesiastes/