This paper examines the connections between the penitential works
attributed to Gildas and David and those of the anonymous author of the <i>Poenitentiale Ambrosianum</i> and Cummian. It argues that the penitential attributed to Gildas should be regarded as a genuine work by Gildas and that the <i>Ambrosianum</i>
be considered as ‘the book of David’, from which excerpts were made.
Attempts by Cummian to combine these two authorial traditions in
seventh-century Ireland point to the continuing strength of a British
Church, against the image presented by Bede.