The sweetest honey Is loathsome in his own deliciousness

is this a pun?

i forgot to say!!!

this takes place in romeo and juliet, when a priest is talking to romeo and says this line.

No, this is not a pun. It is a line from William Shakespeare's play, "Romeo and Juliet". In this line, Juliet is expressing her frustration that even though something may be irresistibly sweet, it can become disgusting and overwhelming if taken to excess. The line metaphorically represents the idea that too much of a good thing can turn sour. To understand the meaning and context of this line, you would need to read or study the play, "Romeo and Juliet".