Psalms 59:6

He compares his enemies to a troop of savage and hungry dogs (Psalms 22:16) such as still infest Oriental towns, in the day-time sleeping in the sun or slinking lazily about, but as night comes on collecting together, and traversing the streets in search of food, howling dismally. P.B.V. grinmeans -snarl." Cp. Shakespeare, 2 Hen. VI, iii. 1. 18, quoted in Wright's Bible Word-Book,

"Small curs are not regarded when they grin;

But great men tremble when the lion roars."