First, the repeated use of rhetorical questions is to emphasize the potential complaints of comrades-in-arms, "I have no clothes to wear", which is a rhetorical way to strengthen the tone.
Second, the whole poem expresses the brotherhood between comrades.
Explain in detail:
In short, how can you say that you have no clothes to wear? My clothes are yours! The king sent troops to give us weapons. We have a common danger!
In short, how can you say that you have no clothes to wear? My temperature is yours! Your majesty sent troops without giving me weapons. Let's fight together!
In three words, how can you say that you have no clothes to wear? My clothes are yours! The king sent troops, gave us armor and we marched together!
The whole poem is heroic and powerful, which shows the perseverance and tenacity of the soldiers and is very readable. It is a masterpiece of ancient poetry.
I hope you are satisfied with my answer.