=14, 15. About the midst of the feast.= Bengel calculates that on this year the middle of the feast would be the Sabbath; the temple would in that case be especially crowded, and the day would suggest the remarks respecting the Sabbath.--=Jesus went up into the temple and taught.= He came to Judea privately, he went into the temple publicly; he would not exhibit himself, he would not conceal his doctrine.--=And the Judeans marvelled, saying.= The form of the question which follows indicates a hostile spirit; but it may have been raised, not by the scribes or teachers (_Meyer_, _Alford_), but by the people (_Tholuck_).--=How knoweth this fellow learning, never having been taught?= “A rule analogous to that which still prevails in most church communions forbade any rabbi to teach new truths except he was a regular graduate of one of the theological schools. He might catechise, but he could not preach. This rule the Jews cited against Jesus. ‘How,’ said they contemptuously, ‘does this man know anything of sacred literature, being no graduate?’”--(_Abbott’s Jesus of Nazareth._) _Letters_ (γράμμα) is here the sacred writings of the Jews, _i. e._, the sacred Scriptures and the comments thereon. This question affords the key to the interpretation of the discourse which follows, which is upon the authority, primarily of Christ, secondarily of every Christian teacher, an authority derived, not from theological schools or clerical ordination, but from the indwelling Spirit of God. Christ was himself a “lay preacher;” his example and his precept alike sanction unordained preaching. 16 Jesus answered them, and said, My doctrine is not[267] mine, but his that sent me. [267] chaps. 8:28; 12:49. 17 If[268] any man will do his will, he shall know of the doctrine, whether it be of God, or _whether_ I speak of myself. [268] ch. 8:43.