Canst thou say (dunasai legein). Here Matthew 7:4 has wilt thou say (erei). Beholdest not (ou blepwn). Matthew 7:4 has "lo" (idou). Thou hypocrite (upokrita). Contrast to the studied politeness of "brother" (adelpe) above. Powerful picture of blind self-complacence and incompetence, the keyword to argument here.