Baptism is for believers as demonstrated in Acts 8, where Philip states, 'If thou believest with all thine heart, thou mayest.'
Baptism, in the Reformed understanding, is seen as a covenant sign that signifies one's faith in Christ. In Acts 8:36-37, when the Ethiopian eunuch expresses his desire to be baptized, Philip confirms that belief in Jesus Christ is the prerequisite for baptism. 'If thou believest with all thine heart, thou mayest.' This indicates that baptism should follow a personal, conscious faith in Christ, aligning with historic Reformed theology which emphasizes that the sacraments are meant for those who possess true faith. The act of baptism for believers symbolizes their identification with Christ and the washing away of their sins.
Commentary