God and Necessity

A while ago I posted a couple of propositions, but didn’t really explain the difference between them.  Here they are

1) Necessarily, God knows at t1 that S will do x at t2.

2) God knows at t1 that, necessarily, S will do x at t2.

The placement of the word “necessarily” makes a difference.  By “necessarily,” I mean can’t not be true or must be true.  In (1), the necessity is in God’s knowledge of what S will do at t2.  God, being omniscient, would necessarily know what S will do.  This does not mean that S must do x, though.  S could do y instead, and if he did, the proposition would be changed to

(1*) Necessarily, God knows at t1 that S will do y at t2

The necessity is in God’s knowledge of truth, not in S’s action

(2), however, places the necessity in S’s action.  S will do x at t2 and there is no possible world that he exists in where he will do anything other than x.

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