Lets go one at a time:
You say:Where you get any notion that this shows that 'our spirits were created sometime before the earth' is dumbfounding.Read the link , there is plenty of evidence.
Specifically' For in him we live, and move, and have our being' as you rightly point out is talking about a time in the past. So in who? How did we move? and how did we exist? in this previous time?