'Previously' in the Bible

So remember the heights from which you have fallen, and repent [change your inner self—your old way of thinking, your sinful behavior—seek God’s will] and do the works you did at first [when you first knew Me]; otherwise, I will visit you and remove your lampstand (the church, its impact) from its place—unless you repent.

After all this I looked and saw a door in Heaven standing open, and the voice that I had previously heard, which resembled the blast of a trumpet, again spoke to me and said, "Come up here, and I will show you things which are to happen in the future."