"Thus shall you say to the house of Jacob"
Here we read of the happiness of those who are chosen by God to come near to Him. Those who reside in the Holy Land have the presence of God because the Shechinah always dwells there. In, "And Hashem called to him from the mountain, saying, 'Thus shall you say to the house of Jacob,'" Hashem means to reveal wisdom to the children of Yisrael, and to tell them the truth about what He has done for them. We read how Rabbi Yosi and Rabbi Chiya fall in with a man who has the wisdom of herbs, and who cures them with one of his herbs of an ailment that they did not even know they had. He shows them the danger and the power of his herb, and they watch while it kills the serpent. In this way we learn the tremendous power inherent in everything that God created to grow on earth.