1. His miraculous Conception in the Womb of the Blessed Virgin. Christ not being conceived in a natural, but supernatural Manner, he did not partake of our natural Corruption. It was impossible he should, because he was the supernatural Production of the Holy Spirit. The Holy Ghost shall come upon thee, and the Power of the Highest shall over-shadow thee: Therefore also, that Holy Thing which shall be born of thee (Luke 1:35). This was an absolutely new Thing, the like was never before, nor ever will be. Behold a new Thing do I create, a woman shall compass a Man, i.e. a male Child by Conception, through the Agency of the divine Spirit. To us a Child is born, to us a Son is given. This was plainly a new Creation. The human Nature of our Lord being produced by the Exertion of the Power of the Spirit of God, no moral Taint or Impunity could attend it. For, the Holy Spirit could not give Subsistence unto an unholy Nature.
2. The human Nature of Christ was replete with all the Gifts and Graces of the Holy Spirit. The Spirit of the Lord God was upon him (Isaiah 61:1). And the Father gave not the Spirit by measure unto him. The Superaddition of the Gifts and Graces of the Spirit unto the Purity of Christ’s Nature, rendered it impossible that he should know sin. He having all the Gifts and Graces of the holy Spirit in their utmost Plenitude and Perfection, superadded unto the Purity of his Nature, nothing of Evil could possibly take Place in him: Such as the holy Spirit formed him, in the Virgin’s Womb, such he infallibly preferred him, by his continual Presence with him, in the fullness of all his Gifts and Graces.
3. The human nature of Christ hath its Subsistence in his Divine Person. That Nature which was miraculously produced by the Power of the Holy Ghost, the Son of God took into a personal Union with himself. He assumed it to be his own in a peculiar manner that it might be at his disposal, and always under the direction of his divine Will. The human Will, and the divine Will of our Saviour are, and eternally will be distinct; but his Will as Man is in absolute Subjection to, and in all Instances, acts under the Direction of his divine Will. And, therefore, it is not possible that he should ever know Sin. Moral evil can never take place in a Nature which is ineffably united with the Person of the Son of God.
By John Brine – 1756