What is baptism?

July 27, 2025 Day 208
The thirtieth question in our catechism is:
“What is baptism?”
The answer is:
“Baptism is a sign of Christian profession, and also a sign of regeneration. Those who are baptised are grafted into the church. The promises of forgiveness of sin and of our adoption to be the children of God by the Holy Spirit are visibly signed and sealed by baptism.”
cf. Romans 6:4; Galatians 3:26-28; Romans 4:11; Acts 22:16 and Article 27.