The Hal/Hotspur contrast is rather ahistorical since the actual Henry Percy was 23 years older than the Prince, two years older than King Henry himself (Asimov 321); but the parallelism provides a structural foundation

Why does he let Douglas leave? Doesn't this just create an endless cycle of rebellion?

Falstaff's political motivations are revealed as selfish and greedy the metaphor here demonstrates his willingness to take advantage of Prince Hal's future power as king to benefit his own interests, by demanding he be spared of incrimination of his actions. His motivations are self-serving and wishes to be respected for behaviour of "good government".

His use of celestial imagery of the moon here also contrast's the use of "Sun" earlier used by Prince Hal.

Prince Hal demonstrates his definition of honour as his duty as accentuated in the rhyming couplet, exhibiting the responsibility Hal displays after being abruptly given heir to the throne, thus Hal’s self-reformation represents the nobility of his status and highlights his redemption to reclaim his honour and reputation lost from his misspent youth in the tavern.

Contrasting Falstaff's stance on the 'unprofitable honour'.

In this soliloquy, Falstaff describes his army of soldiers as he leads them into battle. Falstaff seems to feel a sense of shame after his misuse of the King's Power. Mentioning Lazarus, (A biblical reference to Saint Lazarus - someone who was brought back to life from the dead) as well as "scarecrows" he suggest how his army resembles the undead (and could be easily defeated). This dishonesty and lack of concern for others is countered in Hal.

Hal’s interpretation overlooks Falstaff’s abstract perception on the negligible material value of honour through the metaphor after Hotspur’s defeat accentuating the relatively little care Hal possesses for personal aggrandisement, thus concluding Hal’s preference towards the abstract concept of honour and how the fulfilment of his duty results in the elevation of his honour and reputation.

Hal gives Hotspur a final tribute. Both Hotspur and Hal see honor as a by which they can recognise each other for their actions and thus, even though being enemies, they respect one another.

Shakespeare uses a metaphor of 'flowers' to describe Hotspur's honor. In these short lines Hal describes how he wishes to "crop [them], to make a garland for [his] head" referencing to a crown of honor as well as his previous dialogue with King Henry IV

HAL (Act 3 Scene 2): I will redeem all this on Percy's head, And in the closing of some glorious day, ... When I will wear a garment all of blood And stain my favors in a bloody mask,

Furthermore, it is exemplified that Hotspur continues to strive for honor until he is physically killed.

Shakespeare uses a simile to compare the edge of war to the cutting edge of a knife. Shakespeare describes warfare as King Henry's tool, one that he wishes to utilise again. However, it is described as "ill-sheathed" as it has could harm it's 'master' (King Henry) which is evident from the criticism that he previously received.

nobility

Poins mocks Falstaff's melancholy

oath - by God's blood

high modality