Matthew Poole's English Annotations on the Holy Bible - Matthew 12:38
We read the like to this Matthew 16:1, and Luke seemeth to relate the same history, Luke 11:29. Master was the usual title which they gave to any whom they owned as a teacher. By a sign they mean something that might confirm unto them that he was sent of God; they expected that an extraordinary mission should be so confirmed: so John 6:33, What sign showest thou then, that we might see and believe thee? What dost thou work? Moses showed them signs, (as they there go on), he brought down for... read more
Matthew Poole's English Annotations on the Holy Bible - Matthew 12:36-37
Some understand by idle words here, lying and deceitful words; others, contumelious and reproachful words. But the best interpreters here extend the sense further, not only from the sense of the word αργον, here used, but because they judge our Saviour is here arguing from the less to the greater, convincing the Pharisees what a dreadful account they had to give for their blasphemous and reproachful words, when all must give an account even for those words which they speak to no good purpose,... read more