Let the sweating reaper refresh himself with psalms

Van Gogh

"Let the ploughman gripping the plough-tail chant the Alleluia; let the sweating reaper divert himself with psalms; and let the vinedresser, while with a pruning-hook he prunes the errant vinesprig, chant something Davidic.  Let these be your songs [(carmina)]; these, as they say in common [speech], your love songs [(cantiones)]; these the whistl[ed tunes] of the shepherds; these your instruments of cultivation."

"Arator stivam tenens Alleluia cantet; sudans messor psalmis se avocet; et dum palmitem curvum tondet vinitor falce, aliquid Davidicum canat.  Haec sint vestra carmina; haec, ut vulgo aiunt, amatoriae cantiones:  haec pastorum sibilus; haec instrumenta culturae."

     6th-century monastic Rule of Tarn (Regula Tarnantensis Monasterii) 8 (PL 66, col. 981A), trans. Steve Perisho.  Delsalle, writing in 1961 (Lucien-René Delsalle, "Comparaison, datation, localisation relatives des règles monastiques de Saint Césaire d’Arles, Saint Ferréol d’Uzès et de la «Regula Tarnantensis Monasterii»," Augustiniana 11, no. 1/2 (1961): 24 (5–26)), gave a terminus a quo of 520 and a terminus ad quem of 573, but others (for example Georg Holzherr, Regula Ferioli:  ein Beitrag zur Entstehungsgeschichte und zur Sinndeutung der Benediktinerregel (Einsiedeln; Zürich; Köln:  Benziger Verlag, [1961]) and presumably (???) Fernando Villegas, "La «Regula Monasterii Tarnantensis»:  texte, sources et datation, Revue Bénédictine 84 (1974):  7-65) have dated it later, Katharina Hauschild and Michaela Pzicha, to the fourth quarter of the 6th century (Klosterregel von Tarnant (St. Ottilien, Oberbay:  EOS Verlag, 2012), apparently.  (Needless to say, I have not conducted this investigation in any depth.)