The Holy Spirit, speaking through the Holy Seven Ecumenical Councils, set guidelines for belief. No belief is compatible with the Truth if it challenges the authenticity or fullness of the humanity received and redeemed by our God, Lord and Savior Jesus Christ, the Son and second Person of the Holy Trinity. No belief is compatible with the Truth if it says that our Redemption comes through anyone other than God.

The union of our deficient humanity to Jesus Christ's Human and Divine perfection is the basis of our Redemption. Jesus is the first and only human born without original sin because He is the True God in Whose image and likeness Adam was originally fashioned. At the moment of His Conception at the Annunciation, Jesus Christ began the actual restoration of our humanity to Adam's original state before the Fall. He received our humanity from the Birthgiver of God and ever Virgin Mary. Our redemption was completed in Jesus Christ's human Death on the Cross when the Light of his Divinity overthrew our Death. At the Resurrection and Ascension, humanity was raised to anew potential higher than that of Adam, as Saint Leo the Great said, both in the tome of St. Leo and St. Leo's prayers of the blessing of the Candle of the Easter Vigil.

The humanity of the Virgin had to be like ours. She shared the deficiency of Original Sin. Otherwise, the humanity which Christ received, renewed, and elevated to a new height is not our humanity.

The Birthgiver of God, the ever virgin Mary is free of the stain of a sinful life. She was also free of guilt inherited from Adam, as we all are. Original Guilt is an error set forth by Blessed Augustine. That error requires the error of the Immaculate Conception to explain the Virgin Mary's freedom from the stain of that Guilt. Although Original Sin is a fatal deficiency which makes us tend toward sin, it did not impart guilt nor did it cut humanity off from God's Grace. Guilt is only possible where there has been sin by the individual. We are told: "Et in peccatis (and in sins) [interpreted as delictis (deficiencies) by commentators] peperit me mater mea" (did my mother conceive me) [Ps 50: 7]. Deficiency is not guilt. Original Guilt confuses understanding of our human nature and compromises belief in the humanity which Christ received and redeemed.

As has been shown, the ideas of the Immaculate conception and Original Guilt are incompatible with Christian Theology of Redemption.