Whether whatever God wills He wills necessarily?

Objections

Objection 1 : It seems that whatever God wills He wills necessarily. For everything eternal is necessary. But whatever God wills, He wills from eternity, for otherwise His will would be mutable. Therefore whatever He wills, He wills necessarily.
Objection 2 : Further, God wills things apart from Himself, inasmuch as He wills His own goodness. Now God wills His own goodness necessarily. Therefore He wills things apart from Himself necessarily.
Objection 3 : Further, whatever belongs to the nature of God is necessary, for God is of Himself necessary being, and the principle of all necessity, as above shown (Question [2], Article [3]). But it belongs to His nature to will whatever He wills; since in God there can be nothing over and above His nature as stated in Metaph. v, 6. Therefore whatever He wills, He wills necessarily.
Objection 4 : Further, being that is not necessary, and being that is possible not to be, are one and the same thing. If, therefore, God does not necessarily will a thing that He wills, it is possible for Him not to will it, and therefore possible for Him to will what He does not will. And so the divine will is contingent upon one or the other of two things, and imperfect, since everything contingent is imperfect and mutable.
Objection 5 : Further, on the part of that which is indifferent to one or the other of two things, no action results unless it is inclined to one or the other by some other power, as the Commentator [*Averroes] says in Phys. ii. If, then, the Will of God is indifferent with regard to anything, it follows that His determination to act comes from another; and thus He has some cause prior to Himself.
Objection 6 : Further, whatever God knows, He knows necessarily. But as the divine knowledge is His essence, so is the divine will. Therefore whatever God wills, He wills necessarily.