(But) £ I know him; because I am from him—my inmost nature, the centre of my ego, proceeds, is derived, from him. I have come forth from him. There is that about me and my origin which has brought me into such intimate relations with the Father that I know him as ye do not know him (cf.
John 8:55)—and he (whom I thus know, and to whom I refer, ἐκεῖνος) sent me. This sending is a further condition of the knowledge which you fail to appreciate, but which would make all things plain to you.
If this knowledge should break as the daystar on their darkness, would they not at once see that, up to that point at least, in their experience they did not know, or had not known, whence he was, in the grandest sense.
The charge of ignorance and the claim of supernatural knowledge, Divine origin, Divine commission, was too much for these Jerusalemites. They thought it blasphemy.