And when she and her household had been baptized, she urged us, saying, "If you have judged me to be faithful to the Lord, come into my house and stay." And she prevailed upon us. Acts 16:15
One last thought on infant baptism for now. Though we who believe in believer’s baptism differ with the proponents of infant baptism (paedo baptism), we are not enemies! We are brothers and sisters who see the matter differently. One of the arguments set forth by the infant baptism side of the aisle is based on continuity of the Old and New Testaments (OT & NT). We also believe in the continuity of the Testaments, but there are exceptions. While there is a measure of correspondence between OT circumcision and NT baptism, there are differences as well.
For instance, only males were circumcised. That is certainly not true regarding baptism as there is no male nor female when it comes to salvation, including baptism (Galatians 3:28). In addition there are numerous times in both Testaments where we are warned about the importance of having circumcised hearts rather than merely being circumcised physically (Deuteronomy 30:3, Romans 2:29). The flesh profits nothing (John 6:63). From this we are encouraged not to perform spiritual rituals—including biblical ones such as baptism—unless the heart is right. While the parents of baptized children may be right with God, infants who have no profession of faith should not be baptized.