These are called synonyms, which are words and phrases that have the same meaning as another word or phrase.
These are known as vivid dreams.
Many of the narratives furnish a vivid picture of the life of David with a minuteness of personal detail which has suggested to some that their author was intimately acquainted with the events, and, if not a contemporary, belonged to the succeeding generation, while to others it has seemed more probable that these reflect rather " the plastic mould of popular tradition.