Charles Ellicott Commentary Matthew 15:19

"For out of the heart come forth evil thoughts, murders, adulteries, fornications, thefts, false witness, railings:" — Matthew 15:19 (ASV)

Evil thoughts, ... blasphemies—The plural form points to the great variety of guilt found under each category. The order is, to some extent, an ascending one: it begins with the “thoughts”—or more precisely, the trains of thought—that are the first suggestions of evil, and ends with the “blasphemies,” or slanderous speech, that directly or indirectly have God, not man, as their object. In this beginning and end, we can trace a reference to the “evil suspicions” that led the Pharisees, as in Matthew 12:24, to utter words of blasphemy against the Son of Man—words that came dangerously close to the blasphemy against the Holy Spirit.