50.  And when He was twelve years old, they took Him to Jerusalem to the feast. And when the feast was finished, they indeed returned; but the Lord Jesus remained in the temple among the teachers and elders and learned men of the sons of Israel, to whom He put various questions upon the sciences, and gave answers in His turn. For He said to them: Whose son is the Messias? They answered Him: The son of David. Wherefore then, said He, does he in the Spirit call him his lord, when he says, The Lord said to my lord, Sit at my right hand, that I may put thine enemies under thy footsteps? Again the chief of the teachers said to Him: Hast thou read the books? Both the books, said the Lord Jesus, and the things contained in the books. And He explained the books, and the law, and the precepts, and the statutes, and the mysteries, which are contained in the books of the prophets-things which the understanding of no creature attains to. That teacher therefore said: I hitherto have neither attained to nor heard of such knowledge: Who, pray, do you think that boy will be?