I, even I, am he that blotteth out thy transgressions for mine own sake, and will not remember thy sins. I, even I, am he - The original is extremely abrupt: אנכי אנכי הוא anochi anochi hu, "I, I, He." Is there any mystery in this form? Does it refer to a plurality of persons in the Godhead?
For mine own sake - In the pardon of sin God can draw no reason but from his own infinite goodness.