What was handles most famous oratorio?

George Frideric Handel's most famous oratorio is "Messiah," composed in 1741. It is renowned for its powerful choral sections, including the iconic "Hallelujah" chorus. The work has become a staple of the choral repertoire, especially during the Christmas season, and is celebrated for its profound theological themes and expressive music. "Messiah" remains one of Handel's most enduring and beloved compositions.