Hi Noreen; didn't we have a great time at WindyB? Ickle and I sang this yesterday in 'the hut'. I've always interpreted the 'but' in the old sense of 'will only' ie 'changeless affections strength to prove but speed you on your way' is 'knowing of your loves changeless affection will give you strength and guide you on your way'- don't know whether that makes sense to you!