There were about 40 different human authors involved in the writing of the Bible. These men differed in background, education, culture and profession.
Moses was a political leader, trained in the highest schools and universities of Egypt.
Amos was a simple herdsman.
Joshua was a military general.
Nehemiah was a royal cupbearer.
Daniel was a prime minister.
Solomon and David were kings.
Matthew was a tax collector for the Roman Empire.
Luke was a physician.
Peter was a fisherman.
Paul was a rabbi.