gareth looked up , his face stricken , unsure of what to do ; but there was nothing he could do that would n't embarrass her , and so he slid his own ring partway down her finger and began to say the words that would unite them forever : `` with this ring i thee wed , with my body i thee worship , and with all my worldly goods i thee endow : in the name of the father and of the son and of the holy ghost .