'Existed' in the Bible

John testified about him and cried out, saying, "This one was [he about] whom I said, 'The one who comes after me is ahead of me, because he existed before me.'"

This one is [the one] about whom I said, 'After me is coming a man who is ahead of me, because he existed before me.'

And now, Father, you glorify me {at your side} with the glory that I had {at your side} before the world existed.