All the words – lyrics – of The Messiah with their Bible references and other recording samples are on Handel’s Messiah: entire oratorio with complete Bible verse lyrics.
In July 1741 Charles Jennens sent Handel a new libretto for an oratorio. In a letter dated 10 July to a friend, Jennens wrote: I hope he will lay out his whole Genius & Skill upon it, that the Composition may excell all his former Compositions, as the Subject excells every other subject. The Subject is Messiah.
That libretto is the lyrics of Messiah, all from Scripture.