NPNF1-04. Augustine: The Writings Against the Manichaeans and Against the Donatists

Chapter 30.—58. Another Julianus of Marcelliana¹⁸³⁹ said: "If a man can serve two masters, God and mammon,Matt. vi. 24 then baptism also can serve two, the Christian and the heretic."¹⁸⁴¹

1. Truly, if it can serve the self-restrained and the covetous man, the sober and the drunken, the well-affectioned and the murderer, why should it not also serve the Christian and the heretic?—whom, indeed, it does not really serve; but it ministers to them, and is administered by them, for salvation to those who use it right, and for judgment to such as use it wrong.