George Haydock's Catholic Commentary
Psalms 4:9
PSALM IV. (CUM INVOCAREM.)
The prophet teacheth us to flee to God in tribulation, with confidence in him.
Same, ( in idipsum) which signifies with one accord, Acts i. 14. Hebrew, "altogether," when we shall be united as one people, which I expect will shortly be the case. Confiding in God, I will repose as in the arms of peace. Absalom was already cut off. But all his adherents were not reclaimed. Yet their number was so small, as to cause no apprehensions. (Haydock) --- Under thy protection, I am secure, (Calmet) no longer kept between fear and hope. (St. Bernard) --- When I lie down, I can enjoy rest, (Berthier) being free from turbulent passions. (Haydock)