"Behold, I give you the authority to trample on serpents and scorpions, and over all the power of the enemy, and nothing shall by any means hurt you."
This authority the Savior gave His apostles and ministers is very important, for the building up of the faith and lives of the saints. Preachers are to "trample" on the devil's "gospels" and doctrines--and ruthlessly destroy them, (exposing them to be the frauds and
blasphemies that they are).
If you are a faithful churchman, redeemed by the grace of Christ
alone--apprehended by faith alone--then be sure to pray for those in this spiritual authority over you (that they would be bold, and not cower from their responsibilities).
[Puritan quote of the day: "If you set your love on worldly things, they will not satisfy. You may as well satisfy your body with air, as your soul with earth." --Thomas Watson, in "All Things for Good"]