Am Iesu Grist a'i farwol glwy'
(O am dafodau fil mewn hwyl [I foli f'anwyl brynwr]) / O for a thousand tongues to sing
O am dafodau fil mewn hwyl [I seinio gyda blas] / O for a thousand tongues to sing
(Pan oedd bugeiliaid gyda'u praidd [cyf. D Gwyn Jones]) / While shepherds watched their flocks by night (Nahum Tate 1652-1715)