Revelation 11:4 These are the two olive trees, and the two candlesticks standing before the God of the earth.
5 And if any man will hurt them, fire proceedeth out of their mouth, and devoureth their enemies: and if any man will hurt them, he must in this manner be killed.
6 These have power to shut heaven, that it rain not in the days of their prophecy: and have power over waters to turn them to blood, and to smite the earth with all plagues, as often as they will.
7 And when they shall have finished their testimony, the beast that ascendeth out of the bottomless pit shall make war against them, and shall overcome them, and kill them.
8 And their dead bodies shall lie in the street of the great city, which spiritually is called Sodom and Egypt, where also our Lord was crucified.
These two men are the two witnesses that will preach the message of God, understand that while these two preach all the news media will be focused on them so the message is going around the world. By the hand of God theses two cannot be destroyed during the first 3 and 1/2 years and they can and will destroy anyone who tries to stop them. Homeland security will not have a chance against them.They will have the power to perform miracles of all kinds, stop the rain , turn the water to blood , and bring plagues upon the people who refuse the Gospel. Only when thy have finished their testimony will God allow Satan to take their life and their bodies will lay in the streets for 3 days. Now it is important to remember that the 144000 are also preaching. The two witnesses focus on God’s people, the Jews, even though it is broadcasted worldwide and the 144000 are Jews and are preaching to reach anyone and everyone. Everyone has their idea of who the two witnesses are but as for me me I believe it is Enoch and Elijah because neither man ever died and have been with God since they left this earth preparing for this time.