From Yesterday’s Liturgy, Preface of Palm Sunday:
For, though innocent, he suffered willingly for sinners and accepted unjust condemnation to save the guilty.
From Leo’s Tome:
“What was taken from the mother of the Lord was the nature without the guilt” (adsumpta est de matre domini natura, non culpa) Leo’s tome, Decrees of the Ecumenical Councils, 1.79
John IV, pointing to what is true in Pope Honorius’s infelicitous words:
“[The Son] Assumed all that is ours without bearing any guilt of the sin arising from the inheritance of the transgression…. There was no sin at all in him when he was born and lived….” (DH 496, Ignatius Press edition).
Gaudium et Spes, 22: “As an innocent Lamb, freely shedding his blood, he merited life for us.”