“This was to fulfill

What was spoken

Through the prophet Isaiah.”

 

ἵνα πληρωθῇ τὸ ῥηθὲν διὰ Ἡσαΐου τοῦ προφήτου λέγοντος

 

There is no question that this citation from Second Isaiah, chapter 42-1-4, was unique to Matthew.  He was a strong believer that these sayings of the Old Testament or Hebrew scriptures were fulfilled with Jesus (ἵνα πληρωθῇ) and his healings.  Matthew explicitly mentions that the prophet Isaiah had spoken these words (τὸ ῥηθὲν διὰ Ἡσαΐου τοῦ προφήτου λέγοντος).