Alternately, it might have been authored by a well-traveled and educated Jew. This book contains 150 psalms which form the hymnal of Israel. They address all aspects of the human condition. The unknown persons who edited the Psalms tended to attribute to David all psalms which were written during the era of the Monarchy, regardless of their actual authorship. A few of the psalms can be dated because they with specific historical events.
Actual authorship is mostly unknown.
These are short, wise statements intended to be used to guide one's life. Most proverbs promote the concept that reward for good behavior and punishment for bad behavior do not result from God's direct intervention. Rather they are a natural consequence of an impersonal law of nature. The book addresses all aspects of the human condition. It is used by some contemporary Christians as justification for corporal punishment of children and for strict behavioral rules concerning sexual activities outside of marriage.