Can someone me with these two questions?

What makes the literal, word-for-word translation of “the metamorphosis” hard to read

Why is macbeth both excited and fearful after hearing the witches prediction about his future

“what i heard was abominable,” said utterson. “it can make no change. you do not understand my position,” returned the doctor, with a certain incoherency of manner. “i am painfully situated, utterson; my position is a very strange—a very strange one. it is one of those affairs that cannot be mended by talking.” –the strange case of dr. jekyll and mr. hyde, robert louis stevenson write two to three sentences explaining how this passage creates suspense.