John did baptize in the wilderness, and preach the baptism of repentance for the remission of sins.
All Commentaries on Mark 1:4 Go To Mark 1
Tertullian of Carthage
AD 220
Those who sought the baptism of repentance were dealt with as if candidates preparing for the baptismal remission and sanctification that were soon to follow in the ministry of Christ. When John preached baptism for “the remission of sins,” the declaration was made with reference to a future remission. If so, John’s call to repentance is to lead the way, and actual remission is to follow. This is what is meant by “preparing the way.” But one who prepares does not himself perfect, but rather makes ready for another to perfect.
