These witnesses are the two olive trees and the two lamp stands standing in the presence of the Lord of the earth. 

       If anyone wants to hurt them, fire comes out of the witnesses’ mouths and burns up their enemies. If anyone wants to hurt them, he must be killed the same way. 

             These witnesses have authority to shut the sky in order to keep rain from falling during the time they speak what God has revealed. They have authority to turn water into blood and to strike the earth with any plague as often as they want.