68. Hear how they are witnesses: The Spirit renews the mind, the water is serviceable for the laver, and the blood refers to the price. For the Spirit made us children by adoption, the water of the sacred Font washed us, the blood of the Lord redeemed us. So we obtain one invisible and one visible testimony in a spiritual sacrament, for “the Spirit Himself beareth witness to our spirit.” Rom. viii. 16. Though the fulness of the sacrament be in each, yet there is a distinction of office; so where there is distinction of office, there certainly is not equality of witness.