'Common' in the Bible

But Peter said, "Absolutely not, Lord, for I have never eaten anything that is common or unclean!"

He told them, "You understand how wrong it is for a Jew to associate or visit with unbelievers. But God has shown me that I should stop calling anyone common or unclean,

But I replied, "Absolutely not, Lord, for nothing common or unclean has ever entered my mouth!'

Then the voice from heaven answered a second time, "You must stop calling common what God has made clean!'