My good angel, thou comest from heaven; God has sent thee to take care of me. Oh, shelter me under thy wings. Lighten my path, direct my steps. Do not leave me, stay quite near me and defend me ...

Michelangelo's sculpture of David is one of the most famous objects in the history of art, and the V&A's cast of David has been a favourite with visitors since its arrival in the Museum in 1857.