83. Now this comparison seems to be not unfitly brought forward in this place, since the kingdom of heaven is redemption from sin, and therefore we all, both bad and good, are mingled with the meal of the Church that we all may be a new lump. But that no one may be afraid that an admixture of evil leaven might injure the lump, the Apostle said: “That ye may be a new lump, even as ye are unleavened;” that is to say, This mixture will render you again such, as in the pure integrity of your innocence. If we thus have compassion, we are not stained with the sins of others, but we gain the restoration of another to the increase of our own grace, so that our integrity remains as it was. And therefore he adds: “For Christ our Passover is sacrificed for us; ” that is, the Passion of the Lord profited all, and gave redemption to sinners who repented of the sins they had committed.