Whether the notional acts are voluntary?

Objections

Objection 1 : It would seem that the notional acts are voluntary. For Hilary says (De Synod.): "Not by natural necessity was the Father led to beget the Son."
Objection 2 : Further, the Apostle says, "He transferred us to the kingdom of the Son of His love" (Col. 1:13). But love belongs to the will. Therefore the Son was begotten of the Father by will.
Objection 3 : Further, nothing is more voluntary than love. But the Holy Ghost proceeds as Love from the Father and the Son. Therefore He proceeds voluntarily.
Objection 4 : Further, the Son proceeds by mode of the intellect, as the Word. But every word proceeds by the will from a speaker. Therefore the Son proceeds from the Father by will, and not by nature.
Objection 5 : Further, what is not voluntary is necessary. Therefore if the Father begot the Son, not by the will, it seems to follow that He begot Him by necessity; and this is against what Augustine says (Ad Orosium qu. vii).