John Calvin on The Trinity and Forgiveness

Wherefore, as during our whole lives we carry about with us the remains of sin, we could not continue in the Church one single moment were we not sustained by the uninterrupted grace of God in forgiving our sins. On the other hand, the Lord has called his people to eternal salvation, and, therefore, they ought to consider that pardon for their sins is always ready. Hence let us surely hold that if we are admitted and ingrafted into the body of the Church, the forgiveness of sins has been bestowed, and is daily bestowed on us, in divine liberality, through the intervention of Christ’s merits and the sanctification of the Spirit.

Institutes, 4.1.21