Read it through once

ISABELLA. O, you beast! O faithless coward! O dishonest wretch! Wilt thou be made a man out of my vice? Is’t not a kind of incest to take life From thine own sister’s shame? What should I think? Heaven shield my mother played my father fair, For such a warped slip of wilderness Ne’er issued from his blood. Take my defiance, Die, perish! Might but my bending down Reprieve thee from thy fate, it should proceed. I’ll pray a thousand prayers for thy death, No word to save thee.