Hippolytus of Rome lived around 170 AD to 235 AD. He was a disciple of Irenaeus. He wrote the Refutation of All Heresies in the very early part of the 3rd Century. In one of his writings he records a baptism service and what is required of the person being baptized to confess.
Hippolytus’ Baptims Confession (210~ AD):
“When the person being baptized goes down into the water, he who baptizes him, putting his hand on him, shall say: “Do you believe in God, the Father Almighty?” And the person being baptized shall say: “I believe.” Then holding his hand on his head, he shall baptize him once.
And then he shall say: “Do you believe in Christ Jesus, the Son of God, who was born of the Virgin Mary, and was crucified under Pontius Pilate, and was dead and buried, and rose again the third day, alive from the dead, and ascended into heaven, and sat at the right hand of the Father, and will come to judge the living and the dead?” And when he says: “I believe,” he is baptized again.
And again he shall say: “Do you believe in the Holy Spirit, in the holy church, and the resurrection of the body?” The person being baptized shall say: “I believe,” and then he is baptized a third time”