John 7:18

He that speaketh from himself seeketh his own glory; but he that seeketh the glory of him that sent him, the same is true, and no unrighteousness is in him.

The third person, instead of the first, indicates the statement of a general principle of truth. In all ages, those ministers who proclaimed God's word, relying on the inherent authority of that word to win people - those have been true ministers. Another class of teachers, cutting and plucking at the word of God with their scissors and editing pencils, claiming for themselves the right to declare what is or is not the word of God, glorifying themselves with their revisions and theories - such men are of Satan.