They have always been here!
The human race has been dominated by ET for thousands of years. The CIA and intelligence agencies around the world are aware of this. The Manipulators ET turned it into a religious war and a psychological experiment on the human race.
Throughout human history people have testified that they heard telepathic voices or messages through dreams. These voices and messages were in a variety of languages and were interpreted as the voices of God in a variety of cultures. All that is written in the Bible is their manipulations by several groups of extraterrestrials. They simply run the world by mind control. All the people who reported hearing a voice in their head was actually their mind control technology. This mind control technology is allowed an experiment between different approaches of cultural psychology by different extraterrestrials. The extraterrestrials have an agenda of minimum direct intervention. So they developed advanced neurological technology. This technology has made it possible to perform neurological mapping that makes it possible to analyze the thinking patterns of living things. This capability has made it possible to create an advanced replication of human consciousness based on AI. Once AI was developed, these extraterrestrials applied their technology to manage civilizations by minimizing direct intervention. The technology works by manipulating the electromagnetic field on the electrical conductors of the neurons in the brain and so on the brain waves. But their technology does not use a standard electromagnetic field like radio. Probably something more advanced like the field of quantum entanglement. If it was a standard electromagnetic field like radio as many people think, repetitive patterns of radio frequencies no matter what wavelength would be detected in laboratories around the world.
Everything in the electromagnetic mind field is recorded. These recordings are stored and allow them to be reused when needed. It allows them to make voices of people from your past and use their and your own memories. Each brain has a unique thought pattern like a fingerprint. By mapping this pattern a specific frequency is adapted to that person and thus communication is created only for that person without his environment being aware of the communication.
Feelings and emotions are a pattern of thinking that the brain creates. When it is possible to mimic these patterns it is possible to create false feelings and emotions. For example when someone is watching you a sense of looking is created. Mind control allows them to mimic this feeling and feed it to the brain and thus creates a feeling that someone is watching you from the side when there is no one in the room. Every feeling has a pattern and mimicking this pattern will create that feeling without environmental factors.