All this was done. — The Evangelist returns to the formula of Matthew 1:22. Literally, all this has come to pass. The words are his comment on the act. At the time (as we find from John 12:16) the disciples did not understand its significance as connected with the prophecy that follows. The purpose lay in the mind of their Master, not in theirs. It is significant of what St. John records that neither St. Mark nor St. Luke alludes to the prophecy.
Related Commentaries of Matthew 21:4
Matthew 21:4
4 All this was done, that it might be fulfilled which was spoken by the prophet, saying,