Reword the following as it was copied

"You must have heard the distinction between necessity and certainty before?

If God knows it will occur, that means it will in fact occur.

But whether it happens by necessity (it has to happen that way and it is impossible that it could have gone another way, where free will is not present) or certainty (it will happen but it was possible it could have gone another way, where free will is present): depends on the causal factors that bring the event about. There is a big difference between a chemical reaction that has to go the way it goes, and you and your wife choosing which restaurant you will go to tonight!"