"And suddenly, there was a sound from heaven…" Acts 2:2 The word sound, is the word 'echos,' it's where we get our word echo. And what is an echo? There is a sound, then there are the reverberations of that sound off of other objects. It's a repetition of something first heard somewhere else. This sound, from heaven, is like an echo. What we are hearing is an echo of heaven. There are reverberations of this event. And, this sound, this echos, is described in a particular way "…a sound like a mighty rushing wind…" Acts 2:2 Listen along as we continue on in our series in the book of Acts and study chapter 4 today.