This is a rhetorical technique of repetition that has been called synonymous parallelism. It is more common in poetry. In the example given, “stand up” reinforces “get up” by repetition.
Hebrew poetry (Biblical poetry) is well known for it. For example, in the following passage, the second line parallels the first line using synonyms:
But let judgment run down as waters,
and righteousness as a mighty stream.
Old English poetry uses the same technique. Often the synonyms they used are themselves the result of a word-invention technique called kenning or compounding, such as “swan-road” for “ocean”.
Hroðgar maþelode, helm Scyldinga
[Hroðgar replied (Scyldinga-protector)]