The natural view of the person of Jesus had an opposite interest, which was also very early manifested both among Jewish and heathen opponents of Christianity, and which consisted in explaining his appearance conformably to the laws of causality, by comparing it with prior and contemporaneous facts to which it had a relation, and thus exhibiting the conditions on which Jesus depended, and the sources from which he drew. It is true that in the first centuries of the Christian era, the whole region of spirituality being a supernatural one for heathens as well as Jews, the reproach that Jesus owed his wisdom and seemingly miraculous powers, not to himself or to God, but to a communication from without, could not usually take the form of an assertion that he had acquired natural skill and wisdom in the ordinary way of instruction from others. [504] Instead of the natural and the human, the unnatural and the demoniacal were opposed to the divine and the supernatural (comp. Matt xii. 24), and Jesus was accused of working his miracles by the aid of magic acquired in his youth. This charge was the most easily attached to the journey of his parents with him into Egypt, that native land of magic and secret wisdom, and thus we find it both in Celsus and in the Talmud. The former makes a Jew allege against Jesus, amongst other things, that he had entered into service for wages in Egypt, that he had there possessed himself of some magic arts, and on the strength of these had on his return vaunted himself for a God. [505] The Talmud gives him a member of the Jewish Sanhedrim as a teacher, makes him journey to Egypt with this companion, and bring magic charms from thence into Palestine. [506] The purely natural explanation of the intellectual development of Jesus could only become prevalent amid the enlightened culture of modern times. In working out this explanation, the chief points of difference are the following: either the character of Jesus is regarded in too circumscribed a view, as the result of only one among the means of culture which his times afforded, or more comprehensively, as the result of all these combined; again, in tracing this external influence, either the internal gifts and self-determination of Jesus are adequately considered, or they are not. In any case, the basis of the intellectual development of Jesus was furnished by the sacred writings of his people, of which the discourses preserved to us in the Gospels attest his zealous and profound study. His Messianic ideas seem to have been formed chiefly on Isaiah and Daniel: spiritual religiousness and elevation above the prejudices of Jewish nationality were impressively shadowed forth in the prophetic writings generally, together with the Psalms.