NET
13 For this reason I speak to them in parables: Although they see they do not see, and although they hear they do not hear nor do they understand.
Darby
13 For this cause I speak to them in parables, because seeing they do not see, and hearing they do not hear nor understand;
KJV
13 “Therefore speak I to them in parables: because they seeing see not; and hearing they hear not, neither do they understand.”