How we cite our quotes:
Not to-day, O Lord,
O, not to-day, think not upon the fault
My father made in compassing the crown!
I Richard's body have interred anew;
And on it have bestow'd more contrite tears
Than from it issued forced drops of blood: (4.2.34)
Henry is always afraid that his family's history will come back to haunt him. The night before the Battle of Agincourt, he prays to God and begs him not to punish him for his father's sins – stealing the crown from Richard II and having him murdered. Although his father's actions are responsible for Henry inheriting the English crown, Henry worries that these actions will ultimately cause his downfall.
We few, we happy few, we band of brothers;
For he to-day that sheds his blood with me
Shall be my brother; be he ne'er so vile,
This day shall gentle his condition: (4.3.1)
This speech has become famous for the way it gives voice to the idea that soldiers become a family (specifically, a brotherhood) when they experience combat together.
I pray you then, in love and dear alliance,
Let that one article rank with the rest;
And thereupon give me your daughter.
Take her, fair son, and from her blood raise up
Issue to me; that the contending kingdoms
Of France and England, whose very shores look pale
With envy of each other's happiness, (5.2.36)
Henry's marriage to Catherine is an important part of the peace treaty because the marriage unifies England and France. If Henry and Catherine can produce a son (which they will), then he'll also one day rule both countries.