I believe that Jews and Christians point to the Book of Exodus.
God made men. Men made slaves.
Are you referring to the Israelites exodus from the slavery of Egypt? The Israelites could not have left Egypt without God's help and blessing. God allowed them to be held captive in slavery because of their disobedience to God.
God made men. Men made slaves.
Exactly right. And when we reveiw the history of man we see most of the time men have lived under tyranny and despots. God has allowed this to show men that they are incapable of governering in their own human wisdom.