‏ Mark 13:35-37

The four watches of the night are named here: evening ( οψε ), midnight ( μεσονυκτιον ), cock-crowing ( αλεκτοροφωνιας ), morning ( πρω ).

 Watch ( γρηγορειτε ). Be on the watch. Present imperative of a verb made on the second perfect,  εγρηγορα, to be awake. Stay awake till the Lord comes.

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