3.  Now as to the charge relating to the singing of psalms, whereby my calumniators specially scare the simpler folk, my reply is this.  The customs which now obtain are agreeable to those of all the Churches of God.  Among us the people go at night to the house of prayer, and, in distress, affliction, and continual tears, making confession to God, at last rise from their prayers and begin to sing psalms.  And now, divided into two parts, they sing antiphonally with one another, thus at once confirming their study of the Gospels, τῶν λογίων.  cf. note on Theodoret, p. 155. and at the same time producing for themselves a heedful temper and a heart free from distraction.  Afterwards they again commit the prelude of the strain to one, and the rest take it up; and so after passing the night in various psalmody, praying at intervals as the day begins to dawn, all together, as with one voice and one heart, raise the psalm of confession to the Lord, each forming for himself his own expressions of penitence.  If it is for these reasons that you renounce me, you will renounce the Egyptians; you will renounce both Libyans, Thebans, Palestinians, Arabians, Phœnicians, Syrians, the dwellers by the Euphrates; in a word all those among whom vigils, prayers, and common psalmody have been held in honour.