Lord Capulet uses the above statement to convey the degree to which he cherishes his daughter Juliet and to emphasize how precious sheis.
"Earth hath swallowed all my hopes but she;She's the hopeful lady of my earth."
Personification
"Then love-devouring death do what he dare,It is enough I may but call her mine."
Forshadowing
Romeo simultaneously invokes and defies death in the midst of hisconversation with Friar Lawrence.
Whose misadventur'd piteous overthrowsDoth, with their death, bury their parents' strife.
The above revelation is made by the chorus in the prologue of the play. Referring to the deaths of the two passionate lovers, the chorusemphasizes that the legacy of rivalry between the Capulets and Montages will only end after the tragic deaths of their children, Romeo andJuliet.
Dramatic Irony 
Lady Capulet uses the metaphor of a book to highlight the depth and beauty of Paris' character as well asto emphasize the countless benefits that can be derived by a marital union with him. In an attempt to persuade her daughter, Juliet, to marryParis, Lady Capulet maintains that the privileges of marrying Paris are many.
"This precious book of love, this unbound lover,To beautify him only lacks a cover."
Metaphor
"Scaring the ladies like a crowkeeper,"
Benvolio is telling his friends, Mercutioand Romeo, that it is a good thing that none of them is dressed up as a silly, blind-folded Cupid looking scarecrow terrifies people.
Simile
Puns
"You gave usthe counterfeitlast night. Theslip sir, theslip.
While at the party, Mercutio confronts Romeo about how he walked out and vanished on Benvolio and him. Romeo sneaking out to meet Juliet helps the plot by demonstrating his love for her.
Goodmorrow to youboth. whatcounterfeit did igive you?