Heidelberg Catechism, 71-75: Baptism, Infants, Lord's Supper
The Heidelberg
Catechism
Question 71. Where has Christ promised us, that he
will as certainly wash us by his blood and Spirit, as we are washed with the
water of baptism?
Answer: In the institution of baptism, which
is thus expressed: "Go ye, therefore, and teach all nations, baptizing
them in the name of the Father, and of the Son, and of the Holy Ghost",
Matt.28:19. And "he that