God himself did erect a partition wall betwixt his people and other nations, Jews and Gentiles; hence by God's own command the Jews might not have any familiar converse with the Gentiles, especially they might not marry with them. The Jews themselves had made this partition wall much larger, and they held it unlawful to eat with any of the Gentiles, or to go so much as into their houses; hence that objection made upon this occasion against St. Peter, Acts 11:3. Unclean; no man is now unclean by any ceremonial uncleanness, because he is not circumcised, or because he is not sprinkled with the blood of bulls, Hebrews 9:13; yet sin hath defiled the whole mass of mankind, and they are equally by nature morally unclean.
Related Commentaries of Acts 10:28
Acts 10:28
28 And he said unto them, Ye know how that it is an unlawful thing for a man that is a Jew to keep company, or come unto one of another nation; but God hath shewed me that I should not call any man common or unclean.