Justin Martyr
Patristic
A.D. 100–165
“As people who have cut your souls off from this hope, it is necessary that you know how to obtain pardon of your sins and a hope of sharing in the promised blessings. There is no other way than this, that you come to know our Christ, be baptized with the baptism that cleanses you from sin (as Isaiah testified) and thus live a life free of sin.”