Isaiah 42
The Servant Song
Presenting the case that it was given to Israel to prepare them for what was to come:
A time was coming where the Lord was going to introduce a New thing, former things would be wrapped up in it.
It was to be a fullfilment of the old and an ushering in of the new.
Jesus announced that it was fullfilled in the reading when He announced himself publicly for the first time, and it was witnessed by John the baptiser that the Father and Holy Spirit confirmed Jesus at his baptism.