George Haydock's Catholic Commentary
Psalms 77:57
The covenant, is omitted in many Greek and Latin copies, as well as in Hebrew. (St. Jerome, ad Sun.) --- Yet it is found in the Vatican edition, (Calmet) as well as in the Alexandrian, Greek: esunthetesan. (Haydock) --- Bow, which hits not the mark. It alludes to the faithless Israelites, (Calmet) particularly to Ephraim, ver. 9., Osee vii. 6., and Jeremias ix. 3. The bow of Jonathan was not such, 2 Kings i. 22. (Calmet) --- A bad bow misses the aim, or breaking, wounds the person who uses it. (Menochius) --- These people hurt themselves by their treachery. (Worthington)