Baptism is the sacrament of faith. The faith required for Baptism is not a perfect and mature faith, but a beginning that is called to develop. The Lord himself affirms that Baptism is necessary for salvation.
60
60 Cf. Jn 3:5. Which I referenced earlier Ie.. Water and the Spirit
He also commands his disciples to proclaim the Gospel to all nations and to baptize them... this is why she takes care not to neglect the mission she has received from the Lord to see that all who can be baptized are "reborn of water and the Spirit." God has bound salvation to the sacrament of Baptism,
but he himself is not bound by his sacraments...Immersion in water symbolizes not only death and purification, but also regeneration and renewal. Thus the two principal effects are purification from sins and new birth in the Holy Spirit...Baptism not only purifies from all sins, but also makes the neophyte "a new creature," an adopted son of God, who has become a "partaker of the divine nature," member of Christ and co-heir with him, and a temple of the Holy Spirit. The Most Holy Trinity gives the baptized sanctifying grace, the grace of justification:
- enabling them to believe in God, to hope in him, and to love him
- giving them the power to live and act under the prompting of the Holy Spirit through the gifts of the Holy Spirit.
- allowing them to grow in goodness through the moral virtues.