Surely, forasmuch as the blood of Christ is the only means whereby our sins are washed away, and as it was once shed to this end, so the Holy Ghost, by the sprinkling thereof through faith, doth make us clean continually. This honour cannot be translated unto the sign of water, without doing open injury to Christ and the Holy Ghost; and experience doth teach how earnestly men be bent upon this superstition. Therefore, many godly men, lest they put confidence in the outward sign, do overmuch extenuate the force of baptism. But they must keep a measure, that the sacraments may be kept within their bounds, lest they darken the glory of Christ; and yet they may not want their force and use.
Wherefore, we must hold this, first, that it is God alone who washeth us from our sins by the blood of his Son; and to the end this washing may be effectual in us, he worketh by the hidden power of his Spirit. Therefore, when the question is concerning remission of sins, we must seek no other author thereof but the heavenly Father, we must imagine no other material cause but the blood of Christ; and when we be come to the formal cause, the Holy Ghost is the chief.
we must again beware that we tie not the grace of God to the sacraments; for the external administration of baptism profiteth nothing, save only where it pleaseth God it shall.