Whether it should be said that Christ was conceived of [de] the Holy Ghost?

❌ Objection 1 : It would seem that we should not say that Christ was conceived of [de] the Holy Ghost. Because on Rm. 11:36: "For of Him [ex ipso] and by Him, and in Him, are all things," the gloss of Augustine says: "Notice that he does not say, 'of Him' [de ipso], but 'of Him' [ex ipso]. For of Him [ex ipso], are heaven and earth, since He made them: but not of Him [de ipso], since they are not made of His substance." But the Holy Ghost did not form Christ's body of [de] His own substance. Therefore we should not say that Christ was conceived of [de] the Holy Ghost.

❌ Objection 2 : Further, the active principle of [de] which something is conceived is as the seed in generation. But the Holy Ghost did not take the place of seed in Christ's conception. For Jerome says (Expos. Cathol. Fidei) [*Written by Pelagius]: "We do not say, as some wicked wretches hold, that the Holy Ghost took the place of seed: but we say that Christ's body was wrought," i.e. formed, "by the power and might of the Creator." Therefore we should not say that Christ's body was conceived of [de] the Holy Ghost.

❌ Objection 3 : Further, no one thing is made of two, except they be in some way mingled. But Christ's body was formed of [de] the Virgin Mary. If therefore we say that Christ was conceived of [de] the Holy Ghost, it seems that a mingling took place of the Holy Ghost with the matter supplied by the Virgin: and this is clearly false. Therefore we should not say that Christ was conceived of [de] the Holy Ghost.