1.We Can’t Live In The Past
If you take this verse as literal as possible the past is just a few minutes ago.
There are a number of issues related to the past that this verse applies to:
Do you have to put them out of our mind so thoroughly that we don’t even know they were there?
It is counterproductive to the now and the future and the now the future is where God is.
The timing wasn’t right, you were in a different place.