Heidelberg Catechism Lords Day 26 – 69. Q. HOW DOES BAPTISM REMIND YOU AND ASSURE YOU THAT CHRIST’S ONE SACRIFICE ON THE CROSS IS FOR YOU PERSONALLY?

A. In this way: Christ instituted this outward washing1 and with it gave the promise that, as surely as water washes away the dirt from the body, so certainly his blood and his Spirit wash away my soul”s impurity, in other words, all my sins.2