John Newton on "Three wonders in heaven..."

If ever I reach heaven I expect to find three wonders
there: first, to meet some I had not thought to see there;
second, to miss some I had expected to see there; and third--
the greatest wonder of all--to find myself there.
... John Newton (1725-1807)

John Newton was the one who wrote the famous hymn "Amazing Grace" after committing his life to Christ and leaving his work in the slave trade.