" They say: 'You were baptized when you were still a child and did not believe. Therefore, your Baptism was nothing.' etc. This is really the same as saying: 'If you do not believe, God's Word and Sacrament are nothing. But if you believe, they are something. Therefore, only those who have faith receive true Baptism, whereas those who do not believe receive nothing but water and are not truly baptized. "

― Martin Luther , Luther on Baptism