Luke 5:36

Jesus next illustrated with parables the fact that His coming introduced a radical break with former religious customs. He did not come to patch Judaism up but to inaugurate a new order. Had Israel accepted Jesus this new order would have been the messianic kingdom, but since the Jews rejected Him it became the church. Eventually it will become the messianic kingdom. Simply adding His new order to Judaism would have two detrimental effects. It would damage the new order, and it would not preserve the old order. It would also appear incongruous. Only Luke’s account includes the first effect, that it would damage the new order. Luke evidently included this to help his Christian readers see that Israel and the church are distinct.

"The real point is the incompatibility of the two pieces of cloth, and the contrast of new and old is implicit. . . . Whereas in Mk. the deficiencies of Judaism cannot be mended simply by a Christian ’patch’, in Lk. the emphasis is on the impossibility of trying to graft something Christian onto Judaism." [Note: Marshall, The Gospel . . ., p. 227.]