Capulet: What noise is this? Give me my long sword, h o!
Lady Capulet: A crutch, a crutch! Why call you for a sword?
Capulet: My sword, I say! Old Montague is come,
And flourishes his blade in spite of me.
The answer you are looking is to foreshadow the tragedy.
Explanation:
The purpose of this dialogue is to foreshadow the tragedy that happens in Romeo and Juliet. By introducing the sword and having the characters talking about it, the writer introduces suspense and leaves people wondeing if that sword will cause damage.
