Galatians 2:16 says, “Knowing that a man is not justified by the works of the law but by faith in Jesus Christ, even we have believed in Christ Jesus, that we might be justified by faith in Christ and not by the works of the law; for by the works of the law no flesh shall be justified.” We are saved by Jesus alone through conscious faith in Him. A baby is not capable of that. Even John’s baptism emphasized personal confession and repentance, and he told them that their religious heritage would not save them. Sometimes people argue that the “household baptisms” in Acts justify infant baptism. However, the texts do not specify how old the people were. Furthermore, in the story of the Philippian jailer, Acts 16:34 says the jailer “rejoiced, having believed in God with all his household.” Therefore, the people who were baptized were old enough to be able to believe for themselves.