An Occasional Oratorio (HWV 62) is an oratorio by George Frideric Handel, based upon a libretto by Newburgh Hamilton after the poetry of John Milton and Edmund Spenser. Handel composed the Occasional Oratorio hastily in January and February 1746 and premiered it immediately on 14 February 1746. It contains 44 movements split over three parts. The famous chorus "Prepare the Hymn" (a paraphrase of Psalm 81:1-2) is the 26th movement and appears in the second part. The second minuet from the Music for the Royal Fireworks was reused from this oratorio.[1]