Eccl. 1:1-2 – The words of the Preacher, the son of David, king in Jerusalem. Vanity of vanities, says the Preacher, vanity of vanities! All is vanity. Eccl. 12:13 – The end of the matter; all has been heard. Fear God and keep his commandments, for this is the whole duty of man. The book of Ecclesiastes is without a doubt one of the more…