Listen to Messiah: Part the First: No. 20 Air: He shall feed His flock; Air: Come unto Him online. Messiah: Part the First: No. 20 Air: He shall feed His flock; Air: Come unto Him is an English language song and is sung by Robert Shaw, Georg Friedrich Händel, Judith Raskin, Florence Kopleff, Robert Conant, Robert Arnold and Robert Shaw Orchestra. Messiah: Part the First: No. 20 Air: He shall feed His flock; Air: Come unto Him, from the album Händel: Messiah, was released in the year 2004. The duration of the song is 5:26. Download English songs online from JioSaavn.