the "double-natured" World Soul, which, according to that philosopher, was formed from a mixture of ideal and sensible matter. It is not strange that a Justin, "the most foolish of the Christian fathers" (Robertson), could actually assert that Plato borrowed the idea, as well as that of a world-conflagration, from--Moses. [282] In the Old Testament also, as was shown above, we meet the cross. Here it served as a mark of recognition and distinction of the God-fearing Israelites from the heathen, and as a magic sign. With a similar significance we meet it again in the New Testament. In the Revelation of John it appears as "the seal (sphragís) of the living God." By it here, too, are the chosen ones of Israel marked off from the rest of mankind whom judgment has overtaken. At the same time, it is said that this sign is imprinted upon the foreheads of the inhabitants of the true Jerusalem. [283] In the Epistles to the Galatians and Ephesians it is said of the believers in Christ that they were "sealed" before God by the mystic sign upon their foreheads, hands, or feet. The sign thus serves them as a pledge of redemption. [284] Again, in the Epistle of Barnabas ix. 8, the cross contained in the letter T is expressly interpreted as (charis) "grace." Under the form of the Greek Tau the cross appears during the first century of the Christian era, especially among the Christians in Egypt, and according to many was a symbol of Adonis or Tammuz. [285] Now since the expressions xúlon and staurós, lignum and crux, were of double significance and denoted both the "seal" of religious salvation and the gibbet, it is possible that the two different significations became of themselves identical in the minds of the faithful. [286] This was possible so much the more easily since the biblical account placed by the side of the "tree of life" in Paradise a "tree of death," the fateful "tree of the knowledge of good and evil," which was supposed to have been accountable for the death of Adam and so of the whole of mankind, and as such made the comparison possible with the wood upon which Jesus died. We meet again with a special form of the cross in the old Assyrian or Babylonian so-called "mystical tree of mystery," which was also a symbol of life. Among the Persians it appears to have had some reference to the holy Haoma tree; and here, too, as well as in India, where it was connected with the Bodhi tree, under which Sakyamuni by his devout humility rose to be a Buddha, it was represented in the artificial shape of a many-armed cross. [287]