en_tn/2ki/02/23.md

went up from there to Bethel

The phrase "went up" is used her because Bethel is higher in elevation than Jericho.

Go up

The young boys wanted Elisha to go away from them and expressed this by saying "go up." Alternate translation: "Go away" (See: rc://en/ta/man/jit/figs-idiom)

baldhead

A bald person does not have any hair on their head. The young boys were mocking Elisha for having a bald head.