St Irenaeus On Heresies, Eusebius and Modern Scholars, and Catholic Catechism
Eusebius explains, “Irenaeus, whose name means ‘peaceable’ and who by temperament was a peacemaker, pleased and negotiated for the peace of the churches.” There was a dispute between Bishop Viktor of Rome and the Asian dioceses over the length of a church fast, he was threatening excommunication over this dispute. Irenaeus interceded, arguing that “the dispute is not only about the day, but also about the actual character of the fast.” He pointed out the variations were differences in practice extending back to their forefathers. Although they had their differences, “they all lived in peace with one another, and so do we: the divergences in the fast emphasizes the unanimity of the faith.” […]