George Haydock's Catholic Commentary
Psalms 100:8
Morning. Without delay, (Worthington; Jeremias xxi. 12.; Haydock) and with a mind composed. (St. Isidore, Pelus i. ep. 321.) --- The Jews explain this of the judgment of zeal, by which a person might kill a notorious criminal, without any trail, (Calmet) in imitation of Phinees and Mattathias, 1 Machabees ii. 24. (Haydock) --- God alone will punish all malefactors at the last day. (St. Augustine) --- The Fathers admonish us to resist temptations at the beginning. (Calmet) Principiis obsta; sero medicina paratur
Cum mala per longas convaluere moras. (Ovid)