King David

Circa 750
From a Canterbury Psalter, MS Cotton Vespasian A.I, fol. 30v.

David plays his harp and composes the psalms while amanuenses on his right and left write down his words. The image picks up on the many references in the Psalms to dancing, the clapping of hands, and music played on the harp and horn.

David's harp with six strings strongly resembles the Anglo-Saxon one discovered in the Sutton Hoo burial:

Reconstruction of the harp found in the Anglo-Saxon ship-burial at Sutton Hoo

Read more about images of King David.

Source: Wikimedia Commons at this page for the manuscript illustration and this page for the harp.