He who speaks from himself seeks his own glory; but He who seeks the glory of the One who sent Him is true, and no unrighteousness is in Him.
John 7:18
Surrounding context
7:17 If anyone wills to do His will, he shall know concerning the doctrine, whether it is from God or whether I speak on My own authority.
7:18 He who speaks from himself seeks his own glory; but He who seeks the glory of the One who sent Him is true, and no unrighteousness is in Him.
7:19 Did not Moses give you the law, yet none of you keeps the law? Why do you seek to kill Me?"