Turretin: God does not will to save those He will not save

XIX. Third, if God has a universal will to save all, it is either absolute or conditional. If absolute, all will actually be saved; if conditional, he wills either to effect the condition necessary to salvation in men or only to exact it. If only to exact it, he does not will and intend the salvation of such by exacting from them an act which he knew to be impossible to man. Again, that condition will certainly be about to come to pass or certainly not about to come to pass. If the former, each and every man will certainly be saved; if the latter, God would be made to will vehemently that which he nevertheless well knew would never take place (as depending upon a condition such that it never would come to pass in this respect because he himself, who alone can, does not will to effect it). Now if it does not belong to a wise man to will anything under a condition which he knows to be impossible, how much less can this be attributed to the most wise God? [Francis Turretin, Institutes of Elenctic Theology, 1.4.XVII.19]