Paul is still speaking to King Agrippa, but he is referring to him in the third person. Alternate translation: "For you ... to you ... from you" (See: [[rc://en/ta/man/translate/figs-123person]])
This can be stated in active and positive form. Alternate translation: "that he is aware of this" or "that you are aware of this" (See: [[rc://en/ta/man/translate/figs-activepassive]] and [[rc://en/ta/man/translate/figs-litotes]])
This means doing something in secret as if a person went and did something in the corner of a room where no one can see him. Alternate translation: "in a dark place" or "in secret" (See: [[rc://en/ta/man/translate/figs-metaphor]])