It is somewhat difficult to accept that God should have stressed upon His Unity in His teachings conveyed to all prophets from Noah to Abraham and up to Moses, and then from Moses to John the Baptist, and then should become a Trinity for sometime, and then should disavow His Trinity in the Book revealed to Prophet Muhammad (S).
29 Du sot den Abraham: ’Si hunn de Moses an d’Prophéiten; op déi sollen si lauschteren!’