Acts 10:14 - Matthew Poole's English Annotations on the Holy Bible

These words may signify one and the same thing, and the latter explain the former; showing that those things are said to be common, which the law, by forbidding them, had made unclean. Others make some difference; and by things common, understand all sorts of creatures, which were forbidden to the Jews, but were commonly fed upon by all nations round about them; and by things unclean, they understand such as by accident became so, as when any of the creatures permitted for use was strangled.