I stumbled across this quotation while studying the origin of baptism:
To put it most simply, the power, effect, benefit, fruit, and purpose of Baptism is to save. No one is baptized in order to become a prince, but as the words say, to “be saved”. To be saved, we know, is nothing else than to be delivered from sin, death, and the devil and to enter into the kingdom of Christ and live with him forever.
— Luther’s Large Catechism, 1529
As I have written previously, baptism does not make sense to me if it is not part of the salvation process. Martin Luther apparently thought the same thing.