Baptism is the sign that God has already forgiven us. God has forgiven us “before always”. Remember, Jesus did not come to change God’s feeling, mind, or attitude about us, Jesus came to change man’s feeling, mind, and attitude about God.
In the Catholic Church, “baptism” is a Sacrament.
This means that yes, the Catholic Sacrament of Baptism is a
sign of God acting in loving interaction with His human creatures. Because Adam is the very first original human, the Catholic Church recognizes that when he deliberately shattered his* original relationship between humanity and Divinity*, the result was the loss of his original State of Original Holiness and Justice. Consequently, his descendants contracted his State of Original Sin which means that human nature, at birth, is deprived of Adam’s original State of Original Holiness and Justice.
Paragraphs 355-421 of the universal
Catechism of the Catholic Church Second Edition, are an excellent source of Catholic information on this topic. Within those paragraphs, along with
CCC 1730-1732, is some basic information regarding the
original relationship between humanity and Divinity.
The Catholic Sacrament of Baptism, by imparting the life of Christ’s grace, removes the human’s contracted State of Original Sin and divinely replaces it with the State of Sanctifying Grace.
The
CCC Glossary, page 898 defines Sanctifying Grace as
“The grace which heals our human nature wounded by sin by giving us a share in the divine life of the Trinity. It is a habitual, supernatural gift which continues the work of sanctifying us—of making us “perfect,” holy, and Christlike (
1999).”
Remember,
that all this is possible because Jesus Christ, as True God and True Man, restored, repaired humanity’s broken relationship with God. He did this with His perfect obedience so that St. Paul in 1 Corinthians 15: 54-55 could write
“Death is swallowed up in victory.
Where, O death, is your victory?
Where, O death is your sting?”
Links to the “best reading ever”
Catechism of the Catholic Church, Second Edition
usccb.org/beliefs-and-teachings/what-we-believe/catechism/catechism-of-the-catholic-church/
scborromeo.org/ccc.htm