to say unto them, &c.. to say to them that (Greek. hoti) This day, &c. Note the force of "that", and see note on Luke 19:9; Mark 14:30 (where hoti is used), and contrast Luke 22:34, and Matthew 21:28 (where hoti is absent).
unto. Greek. pros. App-104.
this scripture. Not the next clause of Isaiah 61:2, which He did not read. That was then doubtful, and is now postponed.