Baptism as a Sign of Forgiveness of Sin

Now in the fifteenth year of the rule of Tiberius Caesar, Pontius Pilate being ruler of Judaea, and Herod being king of Galilee, his brother Philip king of the country of Ituraea and Trachonitis, and Lysanias king of Abilene,  When Annas and Caiaphas were high priests, the word of the Lord came to John, the son of Zacharias, in the waste land.  And he came into all the country round about Jordan, preaching baptism as a sign of forgiveness of si...