Directions for the Future and Permanent Exercise of the Christian Ministry (Mt 10:16-23).

      16. Behold, I send you forth--The "I" here is emphatic, holding up Himself as the Fountain of the Gospel ministry, as He is also the Great Burden of it.
      as sheep--defenseless.
      in the midst of wolves--ready to make a prey of you (Joh 10:12). To be left exposed, as sheep to wolves, would have been startling enough; but that the sheep should be sent among the wolves would sound strange indeed. No wonder this announcement begins with the exclamation, "Behold."
      be ye therefore wise as serpents, and harmless as doves--Wonderful combination this! Alone, the wisdom of the serpent is mere cunning, and the harmlessness of the dove little better than weakness: but in combination, the wisdom of the serpent would save them from unnecessary exposure to danger; the harmlessness of the dove, from sinful expedients to escape it. In the apostolic age of Christianity, how harmoniously were these qualities displayed! Instead of the fanatical thirst for martyrdom, to which a later age gave birth, there was a manly combination of unflinching zeal and calm discretion, before which nothing was able to stand.

JFB.