Do you silence God's prophets?

"And I raised up some of your sons for prophets, and some of your young men for Nazirites. Is it not indeed so, O people of Israel?” declares the LORD.  “But you made the Nazirites drink wine, and commanded the prophets, saying, ‘You shall not prophesy.’"
- Amos 2:11&12

I genuinely do not understand the arguments for the cessation of supernatural gifts. I've been a part of a ministry that regularly sees the supernatural and even requires all who are involved to speak in tongues. Now while I think thats going a little far, I've seen some amazing things related to speaking in tongues. And these people genuinely believe that the occurrence of the supernatural is directly related to the 15 minutes they spend a day, as a ministry, praying in tongues.

Now whatever you think about that. My point related to this scripture is with prophesy. I fear for those that believe that the gifts are no longer around because I fear that they are commanding the prophets "You shall not prophesy." And I do believe there is still prophecy... to a different level than there was before Jesus came etc... but it is still around in some form.

God doesn't mess around when he sends a prophet, intends to say something through that person, and then the prophet is shut up by his people. I think messing with this is a scary thing to mess with.

After all in verses 13-16 God says:

“Behold, I will press you down in your place, as a cart full of sheaves presses down. Flight shall perish from the swift, and the strong shall not retain his strength, nor shall the mighty save his life;  he who handles the bow shall not stand, and he who is swift of foot shall not save himself, nor shall he who rides the horse save his life; and he who is stout of heart among the mighty shall flee away naked in that day,” declares the LORD.

Thats scary stuff to mess with.