Question: Why is the mission of the Seventy (Luke x.) omitted from Matthew? What is its special significance as distinct from that of the Twelve?
Answer: The mission of the Twelve was before the Transfiguration which brought out His rejection, death, and heavenly glory as risen. That of the Seventy followed as an extraordinary call of grace, and therefore in full keeping with the design and character of Luke’s Gospel as compared with Matthew and Mark. But we need not suppose that these things and others were yet understood. In the latter case, so urgent was it, they were to salute no one on the way; and the rejection of them was to reject both Himself and Him who sent Jesus.