Elijah Moshinsky's 1981 opulent production for the Royal Opera still works, thanks largely to Sidney Nolan's vivid combination of naturalistic - well, fairly, in a cardboardish way - sets and characteristically primitive drop-curtain images. Costumes, standard Bible-illustration issue, come in various shades of desert sand for the suffering Israelites, stylish crimsons and russets for the louche Philistines.