Chapter 13, “The Persons to be Baptized” pp. 92-99
Walther is very clear as to who should be baptized. He applies it to unbaptized adults who make correct confession and desire it, along with unbaptized children who do not belong to another parish and are brought by parents. The pastor should make certain not to re-baptize people who considered an emergency baptism to be less real.
In cases of non-trinitarian groups which retain the biblical words in baptism, because the Trinity is denied, the person should be baptized again. In cases of unbelieving families the children should not be taken away from parents’ will but if the parents desire to eais the children in the Christian faith a baptism is appropriate.