One of the distinguishing features of the organization that counters the Satan's kingdom as brought forth in Revelation 12 and 14 is that they have...

One of the distinguishing features of the organization that counters the Satan's kingdom as brought forth in Revelation 12 and 14 is that they have the testimony of Jesus which is explained to be the spirit of prophecy. Does God still speak to modern man? Amongst the array of prophets claiming to have messages from God, is there a voice that comes from the throne of grace? How do you identify a true prophet? What does the Bible reveal on this issue?