Welcome, Haven James.

"We must realize that at whatever time we are baptized, we are once for all washed and purged for our whole life. Therefore, as often as we fall away, we ought to recall the memory of our baptism and fortify our mind with it, that we may always be sure and confident of the forgiveness of sins."

"It is a thing out of all controversy true, that we put on Christ in baptism, and were baptized on this very ground, that we should be one with Him."

"But as baptism is a solemn recognition by which God introduces His children in to the possession of life, a true and effectual sealing of the promise, a pledge of sacred union with Christ, it is justly said to be the entrance and reception into the Church."

-John Calvin

Read Calvin on Baptism here:

Relevant Section of the Institutes