That all sins are put away in baptism
In the first Epistle of Paul to the Corinthians: “Neither fornicators, nor those who serve idols, nor adulterers, nor effeminate, nor the lusters after mankind, nor thieves, nor cheaters, nor drunkards, nor revilers, nor robbers, shall obtain the kingdom of God. And these things indeed you were: but you are washed, but you are sanctified in the name of our Lord Jesus Christ, and in the Spirit of our God.”
Source: The Treatises of Cyprian (New Advent)