This rhetorical question implies that he would not be able to run with horses. This question can be written as a statement. Alternate translation: "you will never compete well against horses." (See: [[rc://en/ta/man/translate/figs-rquestion]])
This refers to the open countryside, where it is easy to travel quickly, in contrast to the overgrown thickets along the Jordan River, where it is difficult to move.
# how will you do in the thickets along the Jordan?
This rhetorical question implies that he would not be able to run through the thickets along the Jordan. This question can be written as a statement. Alternate translation: "you will surely not be able to run in the thickets along the Jordan." (See: [[rc://en/ta/man/translate/figs-rquestion]])