## we did them no harm, and they missed nothing ##

David is pointing out how he and his men offered protection to Nabal's servants and flocks.

## let my young men find favor in your eyes ##

"let your grace be visible to my young men" or "I ask you to please be kind to us" (UDB).   (See: [[rc://en/ta/man/translate/figs-idiom]])

## a festive day ##

"a day of celebration."  English word order allows this phrase to move to either the beginning or end of the sentence. (See: [[rc://en/ta/man/translate/figs-order]])

## to your servants ##

David was expressing respect toward Nabal by calling his men Nabal's servants.

## your son David ##

David was expressing respect and submission toward Nabal as if he were Nabal's son.