Matthew 13:34

All these things spake Jesus in parables unto the multitudes; and without a parable spake he nothing unto them: that it might be fulfilled which was spoken through the prophet, saying, I will open my mouth in parables; I will utter things hidden from the foundation of the world. - Psalms 78:2

This concluded the first four parables which were addressed to the multitudes. This restriction of Jesus' teachings to parables only was confined to certain occasions, especially this one. Halley pointed out, "Christ's teachings that day were parabolical."[5] But, of course, there were other occasions when he did not use parables exclusively. The quotation from Psalms 78:2 showed that even in the choice of that teaching method Christ was following exactly the guidelines laid down in prophecy. The things "hidden from the foundation of the world" were mysteries mentioned earlier in this chapter. See under Matthew 13:17.