Sentence:  `` When you stand up in public and take vows to strive to set an example before your children and to teach them the fundamentals of the Christian faith , you strive a little harder to <WSD>uphold</WSD> those vows '' , explains the slender vice president of the young couples Sunday school class . 
Meaning of the word marked with <WSD> tags:  keep or maintain in unaltered condition; cause to remain or last